Home / 20,507.04-30,762.18-10,113.12

Finding the Fourth Proportional to 20,507.04, 30,762.18 and 10,113.12

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Solution

The fourth proportional to 20,507.04, 30,762.18 and 10,113.12 is: 15,170.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,507.04 : 30,762.18 = 10,113.12 : x
  2. Step 2: Convert to fraction form
    20,507.04/30,762.18 = 10,113.12/x
  3. Step 3: Cross multiply
    20,507.04x = 30,762.18 × 10,113.12
  4. Step 4: Simplify right side
    20,507.04x = 311,101,617.80
  5. Step 5: Solve for x
    x = 311,101,617.80/20,507.04
  6. Step 6: Final answer
    x = 15,170.48

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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.