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Finding the Fourth Proportional to 22,335.60, 30,823.26 and 12,904.22

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Solution

The fourth proportional to 22,335.60, 30,823.26 and 12,904.22 is: 17,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,335.60 : 30,823.26 = 12,904.22 : x
  2. Step 2: Convert to fraction form
    22,335.60/30,823.26 = 12,904.22/x
  3. Step 3: Cross multiply
    22,335.60x = 30,823.26 × 12,904.22
  4. Step 4: Simplify right side
    22,335.60x = 397,750,128.16
  5. Step 5: Solve for x
    x = 397,750,128.16/22,335.60
  6. Step 6: Final answer
    x = 17,807.90

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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.