Home / 25,407.38-38,134.46-12,936.32

Finding the Fourth Proportional to 25,407.38, 38,134.46 and 12,936.32

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Solution

The fourth proportional to 25,407.38, 38,134.46 and 12,936.32 is: 19,416.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,407.38 : 38,134.46 = 12,936.32 : x
  2. Step 2: Convert to fraction form
    25,407.38/38,134.46 = 12,936.32/x
  3. Step 3: Cross multiply
    25,407.38x = 38,134.46 × 12,936.32
  4. Step 4: Simplify right side
    25,407.38x = 493,319,386.91
  5. Step 5: Solve for x
    x = 493,319,386.91/25,407.38
  6. Step 6: Final answer
    x = 19,416.39

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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.