Home / 28,298.74-42,421.72-9,565.75

Finding the Fourth Proportional to 28,298.74, 42,421.72 and 9,565.75

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Solution

The fourth proportional to 28,298.74, 42,421.72 and 9,565.75 is: 14,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,298.74 : 42,421.72 = 9,565.75 : x
  2. Step 2: Convert to fraction form
    28,298.74/42,421.72 = 9,565.75/x
  3. Step 3: Cross multiply
    28,298.74x = 42,421.72 × 9,565.75
  4. Step 4: Simplify right side
    28,298.74x = 405,795,520.26
  5. Step 5: Solve for x
    x = 405,795,520.26/28,298.74
  6. Step 6: Final answer
    x = 14,339.70

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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.