Home / 28,701.38-43,050.89-9,985.66

Finding the Fourth Proportional to 28,701.38, 43,050.89 and 9,985.66

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Solution

The fourth proportional to 28,701.38, 43,050.89 and 9,985.66 is: 14,978.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,701.38 : 43,050.89 = 9,985.66 : x
  2. Step 2: Convert to fraction form
    28,701.38/43,050.89 = 9,985.66/x
  3. Step 3: Cross multiply
    28,701.38x = 43,050.89 × 9,985.66
  4. Step 4: Simplify right side
    28,701.38x = 429,891,467.57
  5. Step 5: Solve for x
    x = 429,891,467.57/28,701.38
  6. Step 6: Final answer
    x = 14,978.08

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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.