Home / 22,967.12-31,693.60-12,897.20

Finding the Fourth Proportional to 22,967.12, 31,693.60 and 12,897.20

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Solution

The fourth proportional to 22,967.12, 31,693.60 and 12,897.20 is: 17,797.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,967.12 : 31,693.60 = 12,897.20 : x
  2. Step 2: Convert to fraction form
    22,967.12/31,693.60 = 12,897.20/x
  3. Step 3: Cross multiply
    22,967.12x = 31,693.60 × 12,897.20
  4. Step 4: Simplify right side
    22,967.12x = 408,758,697.92
  5. Step 5: Solve for x
    x = 408,758,697.92/22,967.12
  6. Step 6: Final answer
    x = 17,797.56

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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.