Home / 28,426.73-39,227.45-15,849.05

Finding the Fourth Proportional to 28,426.73, 39,227.45 and 15,849.05

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Solution

The fourth proportional to 28,426.73, 39,227.45 and 15,849.05 is: 21,870.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,426.73 : 39,227.45 = 15,849.05 : x
  2. Step 2: Convert to fraction form
    28,426.73/39,227.45 = 15,849.05/x
  3. Step 3: Cross multiply
    28,426.73x = 39,227.45 × 15,849.05
  4. Step 4: Simplify right side
    28,426.73x = 621,717,541.04
  5. Step 5: Solve for x
    x = 621,717,541.04/28,426.73
  6. Step 6: Final answer
    x = 21,870.88

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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.