Home / 28,637.92-42,962.80-11,107.68

Finding the Fourth Proportional to 28,637.92, 42,962.80 and 11,107.68

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Solution

The fourth proportional to 28,637.92, 42,962.80 and 11,107.68 is: 16,663.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,637.92 : 42,962.80 = 11,107.68 : x
  2. Step 2: Convert to fraction form
    28,637.92/42,962.80 = 11,107.68/x
  3. Step 3: Cross multiply
    28,637.92x = 42,962.80 × 11,107.68
  4. Step 4: Simplify right side
    28,637.92x = 477,217,034.30
  5. Step 5: Solve for x
    x = 477,217,034.30/28,637.92
  6. Step 6: Final answer
    x = 16,663.82

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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.