Home / 25,130.40-34,679.28-13,799.76

Finding the Fourth Proportional to 25,130.40, 34,679.28 and 13,799.76

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Solution

The fourth proportional to 25,130.40, 34,679.28 and 13,799.76 is: 19,043.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,130.40 : 34,679.28 = 13,799.76 : x
  2. Step 2: Convert to fraction form
    25,130.40/34,679.28 = 13,799.76/x
  3. Step 3: Cross multiply
    25,130.40x = 34,679.28 × 13,799.76
  4. Step 4: Simplify right side
    25,130.40x = 478,565,740.97
  5. Step 5: Solve for x
    x = 478,565,740.97/25,130.40
  6. Step 6: Final answer
    x = 19,043.30

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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.