Home / 22,911.36-31,616.18-13,478.10

Finding the Fourth Proportional to 22,911.36, 31,616.18 and 13,478.10

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Solution

The fourth proportional to 22,911.36, 31,616.18 and 13,478.10 is: 18,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,911.36 : 31,616.18 = 13,478.10 : x
  2. Step 2: Convert to fraction form
    22,911.36/31,616.18 = 13,478.10/x
  3. Step 3: Cross multiply
    22,911.36x = 31,616.18 × 13,478.10
  4. Step 4: Simplify right side
    22,911.36x = 426,126,035.66
  5. Step 5: Solve for x
    x = 426,126,035.66/22,911.36
  6. Step 6: Final answer
    x = 18,598.90

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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.