Home / 39,785.85-54,901.80-22,790.16

Finding the Fourth Proportional to 39,785.85, 54,901.80 and 22,790.16

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Solution

The fourth proportional to 39,785.85, 54,901.80 and 22,790.16 is: 31,448.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,785.85 : 54,901.80 = 22,790.16 : x
  2. Step 2: Convert to fraction form
    39,785.85/54,901.80 = 22,790.16/x
  3. Step 3: Cross multiply
    39,785.85x = 54,901.80 × 22,790.16
  4. Step 4: Simplify right side
    39,785.85x = 1,251,220,806.29
  5. Step 5: Solve for x
    x = 1,251,220,806.29/39,785.85
  6. Step 6: Final answer
    x = 31,448.89

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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.