Home / 28,071.66-38,737.65-15,324.51

Finding the Fourth Proportional to 28,071.66, 38,737.65 and 15,324.51

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Solution

The fourth proportional to 28,071.66, 38,737.65 and 15,324.51 is: 21,147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.66 : 38,737.65 = 15,324.51 : x
  2. Step 2: Convert to fraction form
    28,071.66/38,737.65 = 15,324.51/x
  3. Step 3: Cross multiply
    28,071.66x = 38,737.65 × 15,324.51
  4. Step 4: Simplify right side
    28,071.66x = 593,635,504.80
  5. Step 5: Solve for x
    x = 593,635,504.80/28,071.66
  6. Step 6: Final answer
    x = 21,147.15

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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.