Home / 22,986.07-31,723.98-12,915.29

Finding the Fourth Proportional to 22,986.07, 31,723.98 and 12,915.29

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Solution

The fourth proportional to 22,986.07, 31,723.98 and 12,915.29 is: 17,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,986.07 : 31,723.98 = 12,915.29 : x
  2. Step 2: Convert to fraction form
    22,986.07/31,723.98 = 12,915.29/x
  3. Step 3: Cross multiply
    22,986.07x = 31,723.98 × 12,915.29
  4. Step 4: Simplify right side
    22,986.07x = 409,724,337.08
  5. Step 5: Solve for x
    x = 409,724,337.08/22,986.07
  6. Step 6: Final answer
    x = 17,824.90

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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.