Home / 28,291.72-42,437.10-9,567.76

Finding the Fourth Proportional to 28,291.72, 42,437.10 and 9,567.76

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Solution

The fourth proportional to 28,291.72, 42,437.10 and 9,567.76 is: 14,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,291.72 : 42,437.10 = 9,567.76 : x
  2. Step 2: Convert to fraction form
    28,291.72/42,437.10 = 9,567.76/x
  3. Step 3: Cross multiply
    28,291.72x = 42,437.10 × 9,567.76
  4. Step 4: Simplify right side
    28,291.72x = 406,027,987.90
  5. Step 5: Solve for x
    x = 406,027,987.90/28,291.72
  6. Step 6: Final answer
    x = 14,351.48

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1.5x scale

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.