Home / 25,415.68-38,034.76-19,401.40

Finding the Fourth Proportional to 25,415.68, 38,034.76 and 19,401.40

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Solution

The fourth proportional to 25,415.68, 38,034.76 and 19,401.40 is: 29,034.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,415.68 : 38,034.76 = 19,401.40 : x
  2. Step 2: Convert to fraction form
    25,415.68/38,034.76 = 19,401.40/x
  3. Step 3: Cross multiply
    25,415.68x = 38,034.76 × 19,401.40
  4. Step 4: Simplify right side
    25,415.68x = 737,927,592.66
  5. Step 5: Solve for x
    x = 737,927,592.66/25,415.68
  6. Step 6: Final answer
    x = 29,034.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.