Home / 28,137.15-42,207.96-9,417.29

Finding the Fourth Proportional to 28,137.15, 42,207.96 and 9,417.29

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Solution

The fourth proportional to 28,137.15, 42,207.96 and 9,417.29 is: 14,126.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,137.15 : 42,207.96 = 9,417.29 : x
  2. Step 2: Convert to fraction form
    28,137.15/42,207.96 = 9,417.29/x
  3. Step 3: Cross multiply
    28,137.15x = 42,207.96 × 9,417.29
  4. Step 4: Simplify right side
    28,137.15x = 397,484,388.59
  5. Step 5: Solve for x
    x = 397,484,388.59/28,137.15
  6. Step 6: Final answer
    x = 14,126.68

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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.