Home / 16,920.86-25,342.88-13,577.45

Finding the Fourth Proportional to 16,920.86, 25,342.88 and 13,577.45

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Solution

The fourth proportional to 16,920.86, 25,342.88 and 13,577.45 is: 20,335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.86 : 25,342.88 = 13,577.45 : x
  2. Step 2: Convert to fraction form
    16,920.86/25,342.88 = 13,577.45/x
  3. Step 3: Cross multiply
    16,920.86x = 25,342.88 × 13,577.45
  4. Step 4: Simplify right side
    16,920.86x = 344,091,491.45
  5. Step 5: Solve for x
    x = 344,091,491.45/16,920.86
  6. Step 6: Final answer
    x = 20,335.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.