Home / 42,178.74-63,279.12-12,596.58

Finding the Fourth Proportional to 42,178.74, 63,279.12 and 12,596.58

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Solution

The fourth proportional to 42,178.74, 63,279.12 and 12,596.58 is: 18,898.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,178.74 : 63,279.12 = 12,596.58 : x
  2. Step 2: Convert to fraction form
    42,178.74/63,279.12 = 12,596.58/x
  3. Step 3: Cross multiply
    42,178.74x = 63,279.12 × 12,596.58
  4. Step 4: Simplify right side
    42,178.74x = 797,100,497.41
  5. Step 5: Solve for x
    x = 797,100,497.41/42,178.74
  6. Step 6: Final answer
    x = 18,898.16

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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.