Home / 28,656.38-42,987.31-11,127.58

Finding the Fourth Proportional to 28,656.38, 42,987.31 and 11,127.58

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Solution

The fourth proportional to 28,656.38, 42,987.31 and 11,127.58 is: 16,692.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.38 : 42,987.31 = 11,127.58 : x
  2. Step 2: Convert to fraction form
    28,656.38/42,987.31 = 11,127.58/x
  3. Step 3: Cross multiply
    28,656.38x = 42,987.31 × 11,127.58
  4. Step 4: Simplify right side
    28,656.38x = 478,344,595.72
  5. Step 5: Solve for x
    x = 478,344,595.72/28,656.38
  6. Step 6: Final answer
    x = 16,692.43

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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.