Home / 25,671.79-35,429.70-18,507.61

Finding the Fourth Proportional to 25,671.79, 35,429.70 and 18,507.61

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Solution

The fourth proportional to 25,671.79, 35,429.70 and 18,507.61 is: 25,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,671.79 : 35,429.70 = 18,507.61 : x
  2. Step 2: Convert to fraction form
    25,671.79/35,429.70 = 18,507.61/x
  3. Step 3: Cross multiply
    25,671.79x = 35,429.70 × 18,507.61
  4. Step 4: Simplify right side
    25,671.79x = 655,719,070.02
  5. Step 5: Solve for x
    x = 655,719,070.02/25,671.79
  6. Step 6: Final answer
    x = 25,542.40

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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.