Home / 25,350.78-34,984.14-14,172.78

Finding the Fourth Proportional to 25,350.78, 34,984.14 and 14,172.78

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Solution

The fourth proportional to 25,350.78, 34,984.14 and 14,172.78 is: 19,558.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,350.78 : 34,984.14 = 14,172.78 : x
  2. Step 2: Convert to fraction form
    25,350.78/34,984.14 = 14,172.78/x
  3. Step 3: Cross multiply
    25,350.78x = 34,984.14 × 14,172.78
  4. Step 4: Simplify right side
    25,350.78x = 495,822,519.71
  5. Step 5: Solve for x
    x = 495,822,519.71/25,350.78
  6. Step 6: Final answer
    x = 19,558.47

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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.