Home / 25,651.20-35,406.72-15,045.12

Finding the Fourth Proportional to 25,651.20, 35,406.72 and 15,045.12

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Solution

The fourth proportional to 25,651.20, 35,406.72 and 15,045.12 is: 20,767.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,651.20 : 35,406.72 = 15,045.12 : x
  2. Step 2: Convert to fraction form
    25,651.20/35,406.72 = 15,045.12/x
  3. Step 3: Cross multiply
    25,651.20x = 35,406.72 × 15,045.12
  4. Step 4: Simplify right side
    25,651.20x = 532,698,351.21
  5. Step 5: Solve for x
    x = 532,698,351.21/25,651.20
  6. Step 6: Final answer
    x = 20,767.00

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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.