Home / 39,168.47-54,053.64-21,264.63

Finding the Fourth Proportional to 39,168.47, 54,053.64 and 21,264.63

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Solution

The fourth proportional to 39,168.47, 54,053.64 and 21,264.63 is: 29,345.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,168.47 : 54,053.64 = 21,264.63 : x
  2. Step 2: Convert to fraction form
    39,168.47/54,053.64 = 21,264.63/x
  3. Step 3: Cross multiply
    39,168.47x = 54,053.64 × 21,264.63
  4. Step 4: Simplify right side
    39,168.47x = 1,149,430,654.75
  5. Step 5: Solve for x
    x = 1,149,430,654.75/39,168.47
  6. Step 6: Final answer
    x = 29,345.82

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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.