Home / 39,168.87-54,053.12-21,263.92

Finding the Fourth Proportional to 39,168.87, 54,053.12 and 21,263.92

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Solution

The fourth proportional to 39,168.87, 54,053.12 and 21,263.92 is: 29,344.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,168.87 : 54,053.12 = 21,263.92 : x
  2. Step 2: Convert to fraction form
    39,168.87/54,053.12 = 21,263.92/x
  3. Step 3: Cross multiply
    39,168.87x = 54,053.12 × 21,263.92
  4. Step 4: Simplify right side
    39,168.87x = 1,149,381,137.46
  5. Step 5: Solve for x
    x = 1,149,381,137.46/39,168.87
  6. Step 6: Final answer
    x = 29,344.25

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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.