Home / 28,539.61-42,827.18-13,750.02

Finding the Fourth Proportional to 28,539.61, 42,827.18 and 13,750.02

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Solution

The fourth proportional to 28,539.61, 42,827.18 and 13,750.02 is: 20,633.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539.61 : 42,827.18 = 13,750.02 : x
  2. Step 2: Convert to fraction form
    28,539.61/42,827.18 = 13,750.02/x
  3. Step 3: Cross multiply
    28,539.61x = 42,827.18 × 13,750.02
  4. Step 4: Simplify right side
    28,539.61x = 588,874,512.79
  5. Step 5: Solve for x
    x = 588,874,512.79/28,539.61
  6. Step 6: Final answer
    x = 20,633.59

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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.