Home / 28,682.40-42,975.05-17,565.87

Finding the Fourth Proportional to 28,682.40, 42,975.05 and 17,565.87

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Solution

The fourth proportional to 28,682.40, 42,975.05 and 17,565.87 is: 26,319.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,682.40 : 42,975.05 = 17,565.87 : x
  2. Step 2: Convert to fraction form
    28,682.40/42,975.05 = 17,565.87/x
  3. Step 3: Cross multiply
    28,682.40x = 42,975.05 × 17,565.87
  4. Step 4: Simplify right side
    28,682.40x = 754,894,071.94
  5. Step 5: Solve for x
    x = 754,894,071.94/28,682.40
  6. Step 6: Final answer
    x = 26,319.07

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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.