Home / 22,615.67-31,209.15-13,999.56

Finding the Fourth Proportional to 22,615.67, 31,209.15 and 13,999.56

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Solution

The fourth proportional to 22,615.67, 31,209.15 and 13,999.56 is: 19,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,615.67 : 31,209.15 = 13,999.56 : x
  2. Step 2: Convert to fraction form
    22,615.67/31,209.15 = 13,999.56/x
  3. Step 3: Cross multiply
    22,615.67x = 31,209.15 × 13,999.56
  4. Step 4: Simplify right side
    22,615.67x = 436,914,312.47
  5. Step 5: Solve for x
    x = 436,914,312.47/22,615.67
  6. Step 6: Final answer
    x = 19,319.10

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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.