Home / 39,430.08-54,414.54-21,526.74

Finding the Fourth Proportional to 39,430.08, 54,414.54 and 21,526.74

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Solution

The fourth proportional to 39,430.08, 54,414.54 and 21,526.74 is: 29,707.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,430.08 : 54,414.54 = 21,526.74 : x
  2. Step 2: Convert to fraction form
    39,430.08/54,414.54 = 21,526.74/x
  3. Step 3: Cross multiply
    39,430.08x = 54,414.54 × 21,526.74
  4. Step 4: Simplify right side
    39,430.08x = 1,171,367,654.80
  5. Step 5: Solve for x
    x = 1,171,367,654.80/39,430.08
  6. Step 6: Final answer
    x = 29,707.46

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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.