Home / 28,036.30-42,061.52-9,316.43

Finding the Fourth Proportional to 28,036.30, 42,061.52 and 9,316.43

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Solution

The fourth proportional to 28,036.30, 42,061.52 and 9,316.43 is: 13,977.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.30 : 42,061.52 = 9,316.43 : x
  2. Step 2: Convert to fraction form
    28,036.30/42,061.52 = 9,316.43/x
  3. Step 3: Cross multiply
    28,036.30x = 42,061.52 × 9,316.43
  4. Step 4: Simplify right side
    28,036.30x = 391,863,160.19
  5. Step 5: Solve for x
    x = 391,863,160.19/28,036.30
  6. Step 6: Final answer
    x = 13,977.00

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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.