Home / 22,187.88-30,567.25-15,461.31

Finding the Fourth Proportional to 22,187.88, 30,567.25 and 15,461.31

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Solution

The fourth proportional to 22,187.88, 30,567.25 and 15,461.31 is: 21,300.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187.88 : 30,567.25 = 15,461.31 : x
  2. Step 2: Convert to fraction form
    22,187.88/30,567.25 = 15,461.31/x
  3. Step 3: Cross multiply
    22,187.88x = 30,567.25 × 15,461.31
  4. Step 4: Simplify right side
    22,187.88x = 472,609,728.10
  5. Step 5: Solve for x
    x = 472,609,728.10/22,187.88
  6. Step 6: Final answer
    x = 21,300.36

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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.