Home / 28,389.68-42,587.15-9,663.42

Finding the Fourth Proportional to 28,389.68, 42,587.15 and 9,663.42

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Solution

The fourth proportional to 28,389.68, 42,587.15 and 9,663.42 is: 14,496.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389.68 : 42,587.15 = 9,663.42 : x
  2. Step 2: Convert to fraction form
    28,389.68/42,587.15 = 9,663.42/x
  3. Step 3: Cross multiply
    28,389.68x = 42,587.15 × 9,663.42
  4. Step 4: Simplify right side
    28,389.68x = 411,537,468.74
  5. Step 5: Solve for x
    x = 411,537,468.74/28,389.68
  6. Step 6: Final answer
    x = 14,496.03

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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.