Home / 27,572.67-38,009.45-21,516.03

Finding the Fourth Proportional to 27,572.67, 38,009.45 and 21,516.03

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Solution

The fourth proportional to 27,572.67, 38,009.45 and 21,516.03 is: 29,660.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,572.67 : 38,009.45 = 21,516.03 : x
  2. Step 2: Convert to fraction form
    27,572.67/38,009.45 = 21,516.03/x
  3. Step 3: Cross multiply
    27,572.67x = 38,009.45 × 21,516.03
  4. Step 4: Simplify right side
    27,572.67x = 817,812,520.27
  5. Step 5: Solve for x
    x = 817,812,520.27/27,572.67
  6. Step 6: Final answer
    x = 29,660.26

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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.