Home / 25,729.21-35,513.28-15,122.26

Finding the Fourth Proportional to 25,729.21, 35,513.28 and 15,122.26

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Solution

The fourth proportional to 25,729.21, 35,513.28 and 15,122.26 is: 20,872.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,729.21 : 35,513.28 = 15,122.26 : x
  2. Step 2: Convert to fraction form
    25,729.21/35,513.28 = 15,122.26/x
  3. Step 3: Cross multiply
    25,729.21x = 35,513.28 × 15,122.26
  4. Step 4: Simplify right side
    25,729.21x = 537,041,053.61
  5. Step 5: Solve for x
    x = 537,041,053.61/25,729.21
  6. Step 6: Final answer
    x = 20,872.82

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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.