Home / 20,462.49-28,242.27-13,301.28

Finding the Fourth Proportional to 20,462.49, 28,242.27 and 13,301.28

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Solution

The fourth proportional to 20,462.49, 28,242.27 and 13,301.28 is: 18,358.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,462.49 : 28,242.27 = 13,301.28 : x
  2. Step 2: Convert to fraction form
    20,462.49/28,242.27 = 13,301.28/x
  3. Step 3: Cross multiply
    20,462.49x = 28,242.27 × 13,301.28
  4. Step 4: Simplify right side
    20,462.49x = 375,658,341.11
  5. Step 5: Solve for x
    x = 375,658,341.11/20,462.49
  6. Step 6: Final answer
    x = 18,358.39

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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.