Home / 21,154.07-31,731.69-6,160.59

Finding the Fourth Proportional to 21,154.07, 31,731.69 and 6,160.59

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Solution

The fourth proportional to 21,154.07, 31,731.69 and 6,160.59 is: 9,241.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154.07 : 31,731.69 = 6,160.59 : x
  2. Step 2: Convert to fraction form
    21,154.07/31,731.69 = 6,160.59/x
  3. Step 3: Cross multiply
    21,154.07x = 31,731.69 × 6,160.59
  4. Step 4: Simplify right side
    21,154.07x = 195,485,901.29
  5. Step 5: Solve for x
    x = 195,485,901.29/21,154.07
  6. Step 6: Final answer
    x = 9,241.05

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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.