Home / 25,715.23-38,572.86-10,913.78

Finding the Fourth Proportional to 25,715.23, 38,572.86 and 10,913.78

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Solution

The fourth proportional to 25,715.23, 38,572.86 and 10,913.78 is: 16,370.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,715.23 : 38,572.86 = 10,913.78 : x
  2. Step 2: Convert to fraction form
    25,715.23/38,572.86 = 10,913.78/x
  3. Step 3: Cross multiply
    25,715.23x = 38,572.86 × 10,913.78
  4. Step 4: Simplify right side
    25,715.23x = 420,975,708.01
  5. Step 5: Solve for x
    x = 420,975,708.01/25,715.23
  6. Step 6: Final answer
    x = 16,370.68

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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.