Home / 21,277.68-29,359.56-12,325.96

Finding the Fourth Proportional to 21,277.68, 29,359.56 and 12,325.96

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Solution

The fourth proportional to 21,277.68, 29,359.56 and 12,325.96 is: 17,007.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.68 : 29,359.56 = 12,325.96 : x
  2. Step 2: Convert to fraction form
    21,277.68/29,359.56 = 12,325.96/x
  3. Step 3: Cross multiply
    21,277.68x = 29,359.56 × 12,325.96
  4. Step 4: Simplify right side
    21,277.68x = 361,884,762.18
  5. Step 5: Solve for x
    x = 361,884,762.18/21,277.68
  6. Step 6: Final answer
    x = 17,007.72

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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.