Home / 21,001.08-31,501.70-14,407.28

Finding the Fourth Proportional to 21,001.08, 31,501.70 and 14,407.28

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Solution

The fourth proportional to 21,001.08, 31,501.70 and 14,407.28 is: 21,610.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001.08 : 31,501.70 = 14,407.28 : x
  2. Step 2: Convert to fraction form
    21,001.08/31,501.70 = 14,407.28/x
  3. Step 3: Cross multiply
    21,001.08x = 31,501.70 × 14,407.28
  4. Step 4: Simplify right side
    21,001.08x = 453,853,812.38
  5. Step 5: Solve for x
    x = 453,853,812.38/21,001.08
  6. Step 6: Final answer
    x = 21,610.97

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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.