Home / 27,666.02-38,179.11-15,730.09

Finding the Fourth Proportional to 27,666.02, 38,179.11 and 15,730.09

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Solution

The fourth proportional to 27,666.02, 38,179.11 and 15,730.09 is: 21,707.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,666.02 : 38,179.11 = 15,730.09 : x
  2. Step 2: Convert to fraction form
    27,666.02/38,179.11 = 15,730.09/x
  3. Step 3: Cross multiply
    27,666.02x = 38,179.11 × 15,730.09
  4. Step 4: Simplify right side
    27,666.02x = 600,560,836.42
  5. Step 5: Solve for x
    x = 600,560,836.42/27,666.02
  6. Step 6: Final answer
    x = 21,707.53

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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.