Home / 21,273.47-29,349.45-21,240.66

Finding the Fourth Proportional to 21,273.47, 29,349.45 and 21,240.66

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Solution

The fourth proportional to 21,273.47, 29,349.45 and 21,240.66 is: 29,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.47 : 29,349.45 = 21,240.66 : x
  2. Step 2: Convert to fraction form
    21,273.47/29,349.45 = 21,240.66/x
  3. Step 3: Cross multiply
    21,273.47x = 29,349.45 × 21,240.66
  4. Step 4: Simplify right side
    21,273.47x = 623,401,688.64
  5. Step 5: Solve for x
    x = 623,401,688.64/21,273.47
  6. Step 6: Final answer
    x = 29,304.19

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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.