Home / 42,367.08-63,555.92-12,784.86

Finding the Fourth Proportional to 42,367.08, 63,555.92 and 12,784.86

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Solution

The fourth proportional to 42,367.08, 63,555.92 and 12,784.86 is: 19,178.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,367.08 : 63,555.92 = 12,784.86 : x
  2. Step 2: Convert to fraction form
    42,367.08/63,555.92 = 12,784.86/x
  3. Step 3: Cross multiply
    42,367.08x = 63,555.92 × 12,784.86
  4. Step 4: Simplify right side
    42,367.08x = 812,553,475.45
  5. Step 5: Solve for x
    x = 812,553,475.45/42,367.08
  6. Step 6: Final answer
    x = 19,178.89

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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.