Home / 25,344.80-38,013.60-7,816.40

Finding the Fourth Proportional to 25,344.80, 38,013.60 and 7,816.40

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Solution

The fourth proportional to 25,344.80, 38,013.60 and 7,816.40 is: 11,723.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,344.80 : 38,013.60 = 7,816.40 : x
  2. Step 2: Convert to fraction form
    25,344.80/38,013.60 = 7,816.40/x
  3. Step 3: Cross multiply
    25,344.80x = 38,013.60 × 7,816.40
  4. Step 4: Simplify right side
    25,344.80x = 297,129,503.04
  5. Step 5: Solve for x
    x = 297,129,503.04/25,344.80
  6. Step 6: Final answer
    x = 11,723.49

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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.