Home / 20,349.90-28,034.91-19,125.18

Finding the Fourth Proportional to 20,349.90, 28,034.91 and 19,125.18

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Solution

The fourth proportional to 20,349.90, 28,034.91 and 19,125.18 is: 26,347.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.90 : 28,034.91 = 19,125.18 : x
  2. Step 2: Convert to fraction form
    20,349.90/28,034.91 = 19,125.18/x
  3. Step 3: Cross multiply
    20,349.90x = 28,034.91 × 19,125.18
  4. Step 4: Simplify right side
    20,349.90x = 536,172,700.03
  5. Step 5: Solve for x
    x = 536,172,700.03/20,349.90
  6. Step 6: Final answer
    x = 26,347.68

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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.