Home / 18,109.60-24,920.40-16,018.72

Finding the Fourth Proportional to 18,109.60, 24,920.40 and 16,018.72

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Solution

The fourth proportional to 18,109.60, 24,920.40 and 16,018.72 is: 22,043.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.60 : 24,920.40 = 16,018.72 : x
  2. Step 2: Convert to fraction form
    18,109.60/24,920.40 = 16,018.72/x
  3. Step 3: Cross multiply
    18,109.60x = 24,920.40 × 16,018.72
  4. Step 4: Simplify right side
    18,109.60x = 399,192,909.89
  5. Step 5: Solve for x
    x = 399,192,909.89/18,109.60
  6. Step 6: Final answer
    x = 22,043.17

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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.