Home / 28,178.02-38,885.74-15,432.04

Finding the Fourth Proportional to 28,178.02, 38,885.74 and 15,432.04

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Solution

The fourth proportional to 28,178.02, 38,885.74 and 15,432.04 is: 21,296.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,178.02 : 38,885.74 = 15,432.04 : x
  2. Step 2: Convert to fraction form
    28,178.02/38,885.74 = 15,432.04/x
  3. Step 3: Cross multiply
    28,178.02x = 38,885.74 × 15,432.04
  4. Step 4: Simplify right side
    28,178.02x = 600,086,217.95
  5. Step 5: Solve for x
    x = 600,086,217.95/28,178.02
  6. Step 6: Final answer
    x = 21,296.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.