Home / 25,857.12-38,770.56-14,167.20

Finding the Fourth Proportional to 25,857.12, 38,770.56 and 14,167.20

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Solution

The fourth proportional to 25,857.12, 38,770.56 and 14,167.20 is: 21,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,857.12 : 38,770.56 = 14,167.20 : x
  2. Step 2: Convert to fraction form
    25,857.12/38,770.56 = 14,167.20/x
  3. Step 3: Cross multiply
    25,857.12x = 38,770.56 × 14,167.20
  4. Step 4: Simplify right side
    25,857.12x = 549,270,277.63
  5. Step 5: Solve for x
    x = 549,270,277.63/25,857.12
  6. Step 6: Final answer
    x = 21,242.52

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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.