Home / 39,041.12-53,876.30-21,135.74

Finding the Fourth Proportional to 39,041.12, 53,876.30 and 21,135.74

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Solution

The fourth proportional to 39,041.12, 53,876.30 and 21,135.74 is: 29,167.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,041.12 : 53,876.30 = 21,135.74 : x
  2. Step 2: Convert to fraction form
    39,041.12/53,876.30 = 21,135.74/x
  3. Step 3: Cross multiply
    39,041.12x = 53,876.30 × 21,135.74
  4. Step 4: Simplify right side
    39,041.12x = 1,138,715,468.96
  5. Step 5: Solve for x
    x = 1,138,715,468.96/39,041.12
  6. Step 6: Final answer
    x = 29,167.08

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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.