Home / 28,386.56-42,505.98-15,174.35

Finding the Fourth Proportional to 28,386.56, 42,505.98 and 15,174.35

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Solution

The fourth proportional to 28,386.56, 42,505.98 and 15,174.35 is: 22,722.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.56 : 42,505.98 = 15,174.35 : x
  2. Step 2: Convert to fraction form
    28,386.56/42,505.98 = 15,174.35/x
  3. Step 3: Cross multiply
    28,386.56x = 42,505.98 × 15,174.35
  4. Step 4: Simplify right side
    28,386.56x = 645,000,405.08
  5. Step 5: Solve for x
    x = 645,000,405.08/28,386.56
  6. Step 6: Final answer
    x = 22,722.04

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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.