Home / 21,423.64-32,129.29-7,383.10

Finding the Fourth Proportional to 21,423.64, 32,129.29 and 7,383.10

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Solution

The fourth proportional to 21,423.64, 32,129.29 and 7,383.10 is: 11,072.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,423.64 : 32,129.29 = 7,383.10 : x
  2. Step 2: Convert to fraction form
    21,423.64/32,129.29 = 7,383.10/x
  3. Step 3: Cross multiply
    21,423.64x = 32,129.29 × 7,383.10
  4. Step 4: Simplify right side
    21,423.64x = 237,213,761.00
  5. Step 5: Solve for x
    x = 237,213,761.00/21,423.64
  6. Step 6: Final answer
    x = 11,072.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.