Home / 22,638.12-31,242.48-12,567.60

Finding the Fourth Proportional to 22,638.12, 31,242.48 and 12,567.60

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Solution

The fourth proportional to 22,638.12, 31,242.48 and 12,567.60 is: 17,344.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,638.12 : 31,242.48 = 12,567.60 : x
  2. Step 2: Convert to fraction form
    22,638.12/31,242.48 = 12,567.60/x
  3. Step 3: Cross multiply
    22,638.12x = 31,242.48 × 12,567.60
  4. Step 4: Simplify right side
    22,638.12x = 392,642,991.65
  5. Step 5: Solve for x
    x = 392,642,991.65/22,638.12
  6. Step 6: Final answer
    x = 17,344.33

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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.