Home / 22,486.19-31,002.09-18,438.10

Finding the Fourth Proportional to 22,486.19, 31,002.09 and 18,438.10

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Solution

The fourth proportional to 22,486.19, 31,002.09 and 18,438.10 is: 25,420.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,486.19 : 31,002.09 = 18,438.10 : x
  2. Step 2: Convert to fraction form
    22,486.19/31,002.09 = 18,438.10/x
  3. Step 3: Cross multiply
    22,486.19x = 31,002.09 × 18,438.10
  4. Step 4: Simplify right side
    22,486.19x = 571,619,635.63
  5. Step 5: Solve for x
    x = 571,619,635.63/22,486.19
  6. Step 6: Final answer
    x = 25,420.92

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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.