Home / 22,070.12-30,461.19-13,115.89

Finding the Fourth Proportional to 22,070.12, 30,461.19 and 13,115.89

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Solution

The fourth proportional to 22,070.12, 30,461.19 and 13,115.89 is: 18,102.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,070.12 : 30,461.19 = 13,115.89 : x
  2. Step 2: Convert to fraction form
    22,070.12/30,461.19 = 13,115.89/x
  3. Step 3: Cross multiply
    22,070.12x = 30,461.19 × 13,115.89
  4. Step 4: Simplify right side
    22,070.12x = 399,525,617.31
  5. Step 5: Solve for x
    x = 399,525,617.31/22,070.12
  6. Step 6: Final answer
    x = 18,102.56

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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.