Home / 22,530.61-31,091.74-12,459.48

Finding the Fourth Proportional to 22,530.61, 31,091.74 and 12,459.48

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Solution

The fourth proportional to 22,530.61, 31,091.74 and 12,459.48 is: 17,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,530.61 : 31,091.74 = 12,459.48 : x
  2. Step 2: Convert to fraction form
    22,530.61/31,091.74 = 12,459.48/x
  3. Step 3: Cross multiply
    22,530.61x = 31,091.74 × 12,459.48
  4. Step 4: Simplify right side
    22,530.61x = 387,386,912.70
  5. Step 5: Solve for x
    x = 387,386,912.70/22,530.61
  6. Step 6: Final answer
    x = 17,193.80

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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.