Home / 39,170.76-54,055.65-21,265.74

Finding the Fourth Proportional to 39,170.76, 54,055.65 and 21,265.74

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Solution

The fourth proportional to 39,170.76, 54,055.65 and 21,265.74 is: 29,346.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,170.76 : 54,055.65 = 21,265.74 : x
  2. Step 2: Convert to fraction form
    39,170.76/54,055.65 = 21,265.74/x
  3. Step 3: Cross multiply
    39,170.76x = 54,055.65 × 21,265.74
  4. Step 4: Simplify right side
    39,170.76x = 1,149,533,398.43
  5. Step 5: Solve for x
    x = 1,149,533,398.43/39,170.76
  6. Step 6: Final answer
    x = 29,346.72

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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.