Home / 25,420.07-38,136.14-8,780.24

Finding the Fourth Proportional to 25,420.07, 38,136.14 and 8,780.24

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Solution

The fourth proportional to 25,420.07, 38,136.14 and 8,780.24 is: 13,172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,420.07 : 38,136.14 = 8,780.24 : x
  2. Step 2: Convert to fraction form
    25,420.07/38,136.14 = 8,780.24/x
  3. Step 3: Cross multiply
    25,420.07x = 38,136.14 × 8,780.24
  4. Step 4: Simplify right side
    25,420.07x = 334,844,227.29
  5. Step 5: Solve for x
    x = 334,844,227.29/25,420.07
  6. Step 6: Final answer
    x = 13,172.44

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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.