Home / 25,425.96-35,080.72-20,031.65

Finding the Fourth Proportional to 25,425.96, 35,080.72 and 20,031.65

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Solution

The fourth proportional to 25,425.96, 35,080.72 and 20,031.65 is: 27,638.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,425.96 : 35,080.72 = 20,031.65 : x
  2. Step 2: Convert to fraction form
    25,425.96/35,080.72 = 20,031.65/x
  3. Step 3: Cross multiply
    25,425.96x = 35,080.72 × 20,031.65
  4. Step 4: Simplify right side
    25,425.96x = 702,724,864.53
  5. Step 5: Solve for x
    x = 702,724,864.53/25,425.96
  6. Step 6: Final answer
    x = 27,638.08

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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.