Home / 28,396.32-42,587.28-8,669.76

Finding the Fourth Proportional to 28,396.32, 42,587.28 and 8,669.76

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Solution

The fourth proportional to 28,396.32, 42,587.28 and 8,669.76 is: 13,002.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,396.32 : 42,587.28 = 8,669.76 : x
  2. Step 2: Convert to fraction form
    28,396.32/42,587.28 = 8,669.76/x
  3. Step 3: Cross multiply
    28,396.32x = 42,587.28 × 8,669.76
  4. Step 4: Simplify right side
    28,396.32x = 369,221,496.65
  5. Step 5: Solve for x
    x = 369,221,496.65/28,396.32
  6. Step 6: Final answer
    x = 13,002.44

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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.