Home / 21,723.02-30,009.39-14,680.34

Finding the Fourth Proportional to 21,723.02, 30,009.39 and 14,680.34

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Solution

The fourth proportional to 21,723.02, 30,009.39 and 14,680.34 is: 20,280.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,723.02 : 30,009.39 = 14,680.34 : x
  2. Step 2: Convert to fraction form
    21,723.02/30,009.39 = 14,680.34/x
  3. Step 3: Cross multiply
    21,723.02x = 30,009.39 × 14,680.34
  4. Step 4: Simplify right side
    21,723.02x = 440,548,048.39
  5. Step 5: Solve for x
    x = 440,548,048.39/21,723.02
  6. Step 6: Final answer
    x = 20,280.24

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.