Home / 22,515.57-31,071.36-12,444.60

Finding the Fourth Proportional to 22,515.57, 31,071.36 and 12,444.60

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Solution

The fourth proportional to 22,515.57, 31,071.36 and 12,444.60 is: 17,173.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,515.57 : 31,071.36 = 12,444.60 : x
  2. Step 2: Convert to fraction form
    22,515.57/31,071.36 = 12,444.60/x
  3. Step 3: Cross multiply
    22,515.57x = 31,071.36 × 12,444.60
  4. Step 4: Simplify right side
    22,515.57x = 386,670,646.66
  5. Step 5: Solve for x
    x = 386,670,646.66/22,515.57
  6. Step 6: Final answer
    x = 17,173.48

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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.