Home / 39,781.04-54,897.76-22,790.79

Finding the Fourth Proportional to 39,781.04, 54,897.76 and 22,790.79

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Solution

The fourth proportional to 39,781.04, 54,897.76 and 22,790.79 is: 31,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,781.04 : 54,897.76 = 22,790.79 : x
  2. Step 2: Convert to fraction form
    39,781.04/54,897.76 = 22,790.79/x
  3. Step 3: Cross multiply
    39,781.04x = 54,897.76 × 22,790.79
  4. Step 4: Simplify right side
    39,781.04x = 1,251,163,319.63
  5. Step 5: Solve for x
    x = 1,251,163,319.63/39,781.04
  6. Step 6: Final answer
    x = 31,451.25

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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.