Home / 25,425.28-38,140.48-8,783.12

Finding the Fourth Proportional to 25,425.28, 38,140.48 and 8,783.12

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Solution

The fourth proportional to 25,425.28, 38,140.48 and 8,783.12 is: 13,175.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,425.28 : 38,140.48 = 8,783.12 : x
  2. Step 2: Convert to fraction form
    25,425.28/38,140.48 = 8,783.12/x
  3. Step 3: Cross multiply
    25,425.28x = 38,140.48 × 8,783.12
  4. Step 4: Simplify right side
    25,425.28x = 334,992,412.70
  5. Step 5: Solve for x
    x = 334,992,412.70/25,425.28
  6. Step 6: Final answer
    x = 13,175.56

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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.