Home / 38,614.11-53,275.08-21,615.85

Finding the Fourth Proportional to 38,614.11, 53,275.08 and 21,615.85

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Solution

The fourth proportional to 38,614.11, 53,275.08 and 21,615.85 is: 29,822.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,614.11 : 53,275.08 = 21,615.85 : x
  2. Step 2: Convert to fraction form
    38,614.11/53,275.08 = 21,615.85/x
  3. Step 3: Cross multiply
    38,614.11x = 53,275.08 × 21,615.85
  4. Step 4: Simplify right side
    38,614.11x = 1,151,586,138.02
  5. Step 5: Solve for x
    x = 1,151,586,138.02/38,614.11
  6. Step 6: Final answer
    x = 29,822.94

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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.