Home / 23,089.64-31,863.48-12,880.76

Finding the Fourth Proportional to 23,089.64, 31,863.48 and 12,880.76

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Solution

The fourth proportional to 23,089.64, 31,863.48 and 12,880.76 is: 17,775.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,089.64 : 31,863.48 = 12,880.76 : x
  2. Step 2: Convert to fraction form
    23,089.64/31,863.48 = 12,880.76/x
  3. Step 3: Cross multiply
    23,089.64x = 31,863.48 × 12,880.76
  4. Step 4: Simplify right side
    23,089.64x = 410,425,838.64
  5. Step 5: Solve for x
    x = 410,425,838.64/23,089.64
  6. Step 6: Final answer
    x = 17,775.32

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Half scale
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Double scale
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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.