Home / 20,584.68-28,399.59-12,624

Finding the Fourth Proportional to 20,584.68, 28,399.59 and 12,624

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Solution

The fourth proportional to 20,584.68, 28,399.59 and 12,624 is: 17,416.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.68 : 28,399.59 = 12,624 : x
  2. Step 2: Convert to fraction form
    20,584.68/28,399.59 = 12,624/x
  3. Step 3: Cross multiply
    20,584.68x = 28,399.59 × 12,624
  4. Step 4: Simplify right side
    20,584.68x = 358,516,424.16
  5. Step 5: Solve for x
    x = 358,516,424.16/20,584.68
  6. Step 6: Final answer
    x = 17,416.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.