Home / 39,142.80-58,714.24-18,366.32

Finding the Fourth Proportional to 39,142.80, 58,714.24 and 18,366.32

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Solution

The fourth proportional to 39,142.80, 58,714.24 and 18,366.32 is: 27,549.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,142.80 : 58,714.24 = 18,366.32 : x
  2. Step 2: Convert to fraction form
    39,142.80/58,714.24 = 18,366.32/x
  3. Step 3: Cross multiply
    39,142.80x = 58,714.24 × 18,366.32
  4. Step 4: Simplify right side
    39,142.80x = 1,078,364,520.40
  5. Step 5: Solve for x
    x = 1,078,364,520.40/39,142.80
  6. Step 6: Final answer
    x = 27,549.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.