Home / 28,874.90-43,312.35-16,390.10

Finding the Fourth Proportional to 28,874.90, 43,312.35 and 16,390.10

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Solution

The fourth proportional to 28,874.90, 43,312.35 and 16,390.10 is: 24,585.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,874.90 : 43,312.35 = 16,390.10 : x
  2. Step 2: Convert to fraction form
    28,874.90/43,312.35 = 16,390.10/x
  3. Step 3: Cross multiply
    28,874.90x = 43,312.35 × 16,390.10
  4. Step 4: Simplify right side
    28,874.90x = 709,893,747.74
  5. Step 5: Solve for x
    x = 709,893,747.74/28,874.90
  6. Step 6: Final answer
    x = 24,585.15

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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.