Home / 25,691.50-35,459.99-15,617.81

Finding the Fourth Proportional to 25,691.50, 35,459.99 and 15,617.81

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Solution

The fourth proportional to 25,691.50, 35,459.99 and 15,617.81 is: 21,556.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.50 : 35,459.99 = 15,617.81 : x
  2. Step 2: Convert to fraction form
    25,691.50/35,459.99 = 15,617.81/x
  3. Step 3: Cross multiply
    25,691.50x = 35,459.99 × 15,617.81
  4. Step 4: Simplify right side
    25,691.50x = 553,807,543.40
  5. Step 5: Solve for x
    x = 553,807,543.40/25,691.50
  6. Step 6: Final answer
    x = 21,556.06

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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.