Home / 25,691.24-35,438.64-16,243.40

Finding the Fourth Proportional to 25,691.24, 35,438.64 and 16,243.40

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Solution

The fourth proportional to 25,691.24, 35,438.64 and 16,243.40 is: 22,406.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.24 : 35,438.64 = 16,243.40 : x
  2. Step 2: Convert to fraction form
    25,691.24/35,438.64 = 16,243.40/x
  3. Step 3: Cross multiply
    25,691.24x = 35,438.64 × 16,243.40
  4. Step 4: Simplify right side
    25,691.24x = 575,644,004.98
  5. Step 5: Solve for x
    x = 575,644,004.98/25,691.24
  6. Step 6: Final answer
    x = 22,406.24

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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.