Home / 18,337.90-25,329.14-14,139.91

Finding the Fourth Proportional to 18,337.90, 25,329.14 and 14,139.91

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Solution

The fourth proportional to 18,337.90, 25,329.14 and 14,139.91 is: 19,530.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.90 : 25,329.14 = 14,139.91 : x
  2. Step 2: Convert to fraction form
    18,337.90/25,329.14 = 14,139.91/x
  3. Step 3: Cross multiply
    18,337.90x = 25,329.14 × 14,139.91
  4. Step 4: Simplify right side
    18,337.90x = 358,151,759.98
  5. Step 5: Solve for x
    x = 358,151,759.98/18,337.90
  6. Step 6: Final answer
    x = 19,530.69

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1.5x scale

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.