Home / 20,318.10-30,477.15-16,862.10

Finding the Fourth Proportional to 20,318.10, 30,477.15 and 16,862.10

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Solution

The fourth proportional to 20,318.10, 30,477.15 and 16,862.10 is: 25,293.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.10 : 30,477.15 = 16,862.10 : x
  2. Step 2: Convert to fraction form
    20,318.10/30,477.15 = 16,862.10/x
  3. Step 3: Cross multiply
    20,318.10x = 30,477.15 × 16,862.10
  4. Step 4: Simplify right side
    20,318.10x = 513,908,751.02
  5. Step 5: Solve for x
    x = 513,908,751.02/20,318.10
  6. Step 6: Final answer
    x = 25,293.15

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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.