Home / 25,119.74-34,665.68-13,790.30

Finding the Fourth Proportional to 25,119.74, 34,665.68 and 13,790.30

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Solution

The fourth proportional to 25,119.74, 34,665.68 and 13,790.30 is: 19,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,119.74 : 34,665.68 = 13,790.30 : x
  2. Step 2: Convert to fraction form
    25,119.74/34,665.68 = 13,790.30/x
  3. Step 3: Cross multiply
    25,119.74x = 34,665.68 × 13,790.30
  4. Step 4: Simplify right side
    25,119.74x = 478,050,126.90
  5. Step 5: Solve for x
    x = 478,050,126.90/25,119.74
  6. Step 6: Final answer
    x = 19,030.85

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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.