Home / 39,264.69-54,186.15-21,360.66

Finding the Fourth Proportional to 39,264.69, 54,186.15 and 21,360.66

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Solution

The fourth proportional to 39,264.69, 54,186.15 and 21,360.66 is: 29,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,264.69 : 54,186.15 = 21,360.66 : x
  2. Step 2: Convert to fraction form
    39,264.69/54,186.15 = 21,360.66/x
  3. Step 3: Cross multiply
    39,264.69x = 54,186.15 × 21,360.66
  4. Step 4: Simplify right side
    39,264.69x = 1,157,451,926.86
  5. Step 5: Solve for x
    x = 1,157,451,926.86/39,264.69
  6. Step 6: Final answer
    x = 29,478.19

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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.