Home / 25,617.40-35,341.82-15,542.15

Finding the Fourth Proportional to 25,617.40, 35,341.82 and 15,542.15

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Solution

The fourth proportional to 25,617.40, 35,341.82 and 15,542.15 is: 21,441.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,617.40 : 35,341.82 = 15,542.15 : x
  2. Step 2: Convert to fraction form
    25,617.40/35,341.82 = 15,542.15/x
  3. Step 3: Cross multiply
    25,617.40x = 35,341.82 × 15,542.15
  4. Step 4: Simplify right side
    25,617.40x = 549,287,671.58
  5. Step 5: Solve for x
    x = 549,287,671.58/25,617.40
  6. Step 6: Final answer
    x = 21,441.98

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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.