Home / 18,820.40-28,066.14-16,491.24

Finding the Fourth Proportional to 18,820.40, 28,066.14 and 16,491.24

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Solution

The fourth proportional to 18,820.40, 28,066.14 and 16,491.24 is: 24,592.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.40 : 28,066.14 = 16,491.24 : x
  2. Step 2: Convert to fraction form
    18,820.40/28,066.14 = 16,491.24/x
  3. Step 3: Cross multiply
    18,820.40x = 28,066.14 × 16,491.24
  4. Step 4: Simplify right side
    18,820.40x = 462,845,450.61
  5. Step 5: Solve for x
    x = 462,845,450.61/18,820.40
  6. Step 6: Final answer
    x = 24,592.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.