Home / 24,403.40-36,648.30-18,870.20

Finding the Fourth Proportional to 24,403.40, 36,648.30 and 18,870.20

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Solution

The fourth proportional to 24,403.40, 36,648.30 and 18,870.20 is: 28,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,403.40 : 36,648.30 = 18,870.20 : x
  2. Step 2: Convert to fraction form
    24,403.40/36,648.30 = 18,870.20/x
  3. Step 3: Cross multiply
    24,403.40x = 36,648.30 × 18,870.20
  4. Step 4: Simplify right side
    24,403.40x = 691,560,750.66
  5. Step 5: Solve for x
    x = 691,560,750.66/24,403.40
  6. Step 6: Final answer
    x = 28,338.70

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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.