Home / 39,246.57-54,160-21,341.59

Finding the Fourth Proportional to 39,246.57, 54,160 and 21,341.59

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Solution

The fourth proportional to 39,246.57, 54,160 and 21,341.59 is: 29,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,246.57 : 54,160 = 21,341.59 : x
  2. Step 2: Convert to fraction form
    39,246.57/54,160 = 21,341.59/x
  3. Step 3: Cross multiply
    39,246.57x = 54,160 × 21,341.59
  4. Step 4: Simplify right side
    39,246.57x = 1,155,860,514.40
  5. Step 5: Solve for x
    x = 1,155,860,514.40/39,246.57
  6. Step 6: Final answer
    x = 29,451.25

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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.