Home / 21,208.02-31,812.03-14,614.35

Finding the Fourth Proportional to 21,208.02, 31,812.03 and 14,614.35

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Solution

The fourth proportional to 21,208.02, 31,812.03 and 14,614.35 is: 21,921.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,208.02 : 31,812.03 = 14,614.35 : x
  2. Step 2: Convert to fraction form
    21,208.02/31,812.03 = 14,614.35/x
  3. Step 3: Cross multiply
    21,208.02x = 31,812.03 × 14,614.35
  4. Step 4: Simplify right side
    21,208.02x = 464,912,140.63
  5. Step 5: Solve for x
    x = 464,912,140.63/21,208.02
  6. Step 6: Final answer
    x = 21,921.53

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.