Home / 39,767.60-54,879.40-22,772.10

Finding the Fourth Proportional to 39,767.60, 54,879.40 and 22,772.10

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Solution

The fourth proportional to 39,767.60, 54,879.40 and 22,772.10 is: 31,425.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,767.60 : 54,879.40 = 22,772.10 : x
  2. Step 2: Convert to fraction form
    39,767.60/54,879.40 = 22,772.10/x
  3. Step 3: Cross multiply
    39,767.60x = 54,879.40 × 22,772.10
  4. Step 4: Simplify right side
    39,767.60x = 1,249,719,184.74
  5. Step 5: Solve for x
    x = 1,249,719,184.74/39,767.60
  6. Step 6: Final answer
    x = 31,425.56

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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.