Home / 25,386.74-35,000.12-20,832.74

Finding the Fourth Proportional to 25,386.74, 35,000.12 and 20,832.74

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Solution

The fourth proportional to 25,386.74, 35,000.12 and 20,832.74 is: 28,721.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,386.74 : 35,000.12 = 20,832.74 : x
  2. Step 2: Convert to fraction form
    25,386.74/35,000.12 = 20,832.74/x
  3. Step 3: Cross multiply
    25,386.74x = 35,000.12 × 20,832.74
  4. Step 4: Simplify right side
    25,386.74x = 729,148,399.93
  5. Step 5: Solve for x
    x = 729,148,399.93/25,386.74
  6. Step 6: Final answer
    x = 28,721.62

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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.