Home / 25,120.30-34,665.87-13,789.99

Finding the Fourth Proportional to 25,120.30, 34,665.87 and 13,789.99

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Solution

The fourth proportional to 25,120.30, 34,665.87 and 13,789.99 is: 19,030.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,120.30 : 34,665.87 = 13,789.99 : x
  2. Step 2: Convert to fraction form
    25,120.30/34,665.87 = 13,789.99/x
  3. Step 3: Cross multiply
    25,120.30x = 34,665.87 × 13,789.99
  4. Step 4: Simplify right side
    25,120.30x = 478,041,913.98
  5. Step 5: Solve for x
    x = 478,041,913.98/25,120.30
  6. Step 6: Final answer
    x = 19,030.11

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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.