Home / 25,320.12-37,937.88-20,891.52

Finding the Fourth Proportional to 25,320.12, 37,937.88 and 20,891.52

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Solution

The fourth proportional to 25,320.12, 37,937.88 and 20,891.52 is: 31,302.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,320.12 : 37,937.88 = 20,891.52 : x
  2. Step 2: Convert to fraction form
    25,320.12/37,937.88 = 20,891.52/x
  3. Step 3: Cross multiply
    25,320.12x = 37,937.88 × 20,891.52
  4. Step 4: Simplify right side
    25,320.12x = 792,579,978.78
  5. Step 5: Solve for x
    x = 792,579,978.78/25,320.12
  6. Step 6: Final answer
    x = 31,302.38

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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.