Home / 28,061.15-42,055.17-11,401.70

Finding the Fourth Proportional to 28,061.15, 42,055.17 and 11,401.70

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Solution

The fourth proportional to 28,061.15, 42,055.17 and 11,401.70 is: 17,087.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,061.15 : 42,055.17 = 11,401.70 : x
  2. Step 2: Convert to fraction form
    28,061.15/42,055.17 = 11,401.70/x
  3. Step 3: Cross multiply
    28,061.15x = 42,055.17 × 11,401.70
  4. Step 4: Simplify right side
    28,061.15x = 479,500,494.17
  5. Step 5: Solve for x
    x = 479,500,494.17/28,061.15
  6. Step 6: Final answer
    x = 17,087.70

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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.