Home / 22,530.40-31,090.68-12,458.24

Finding the Fourth Proportional to 22,530.40, 31,090.68 and 12,458.24

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Solution

The fourth proportional to 22,530.40, 31,090.68 and 12,458.24 is: 17,191.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,530.40 : 31,090.68 = 12,458.24 : x
  2. Step 2: Convert to fraction form
    22,530.40/31,090.68 = 12,458.24/x
  3. Step 3: Cross multiply
    22,530.40x = 31,090.68 × 12,458.24
  4. Step 4: Simplify right side
    22,530.40x = 387,335,153.20
  5. Step 5: Solve for x
    x = 387,335,153.20/22,530.40
  6. Step 6: Final answer
    x = 17,191.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.