Home / 25,428.80-35,079.36-14,814.56

Finding the Fourth Proportional to 25,428.80, 35,079.36 and 14,814.56

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Solution

The fourth proportional to 25,428.80, 35,079.36 and 14,814.56 is: 20,436.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,428.80 : 35,079.36 = 14,814.56 : x
  2. Step 2: Convert to fraction form
    25,428.80/35,079.36 = 14,814.56/x
  3. Step 3: Cross multiply
    25,428.80x = 35,079.36 × 14,814.56
  4. Step 4: Simplify right side
    25,428.80x = 519,685,283.48
  5. Step 5: Solve for x
    x = 519,685,283.48/25,428.80
  6. Step 6: Final answer
    x = 20,436.88

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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.