Home / 20,088.46-30,103.02-18,965.17

Finding the Fourth Proportional to 20,088.46, 30,103.02 and 18,965.17

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Solution

The fourth proportional to 20,088.46, 30,103.02 and 18,965.17 is: 28,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.46 : 30,103.02 = 18,965.17 : x
  2. Step 2: Convert to fraction form
    20,088.46/30,103.02 = 18,965.17/x
  3. Step 3: Cross multiply
    20,088.46x = 30,103.02 × 18,965.17
  4. Step 4: Simplify right side
    20,088.46x = 570,908,891.81
  5. Step 5: Solve for x
    x = 570,908,891.81/20,088.46
  6. Step 6: Final answer
    x = 28,419.74

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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.