Home / 20,160.10-30,232.95-7,012.90

Finding the Fourth Proportional to 20,160.10, 30,232.95 and 7,012.90

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Solution

The fourth proportional to 20,160.10, 30,232.95 and 7,012.90 is: 10,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.10 : 30,232.95 = 7,012.90 : x
  2. Step 2: Convert to fraction form
    20,160.10/30,232.95 = 7,012.90/x
  3. Step 3: Cross multiply
    20,160.10x = 30,232.95 × 7,012.90
  4. Step 4: Simplify right side
    20,160.10x = 212,020,655.06
  5. Step 5: Solve for x
    x = 212,020,655.06/20,160.10
  6. Step 6: Final answer
    x = 10,516.85

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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.