Home / 28,036.13-42,062.39-8,315.16

Finding the Fourth Proportional to 28,036.13, 42,062.39 and 8,315.16

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Solution

The fourth proportional to 28,036.13, 42,062.39 and 8,315.16 is: 12,475.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.13 : 42,062.39 = 8,315.16 : x
  2. Step 2: Convert to fraction form
    28,036.13/42,062.39 = 8,315.16/x
  3. Step 3: Cross multiply
    28,036.13x = 42,062.39 × 8,315.16
  4. Step 4: Simplify right side
    28,036.13x = 349,755,334.70
  5. Step 5: Solve for x
    x = 349,755,334.70/28,036.13
  6. Step 6: Final answer
    x = 12,475.17

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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.