Home / 27,689.05-38,214.54-15,750.08

Finding the Fourth Proportional to 27,689.05, 38,214.54 and 15,750.08

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Solution

The fourth proportional to 27,689.05, 38,214.54 and 15,750.08 is: 21,737.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,689.05 : 38,214.54 = 15,750.08 : x
  2. Step 2: Convert to fraction form
    27,689.05/38,214.54 = 15,750.08/x
  3. Step 3: Cross multiply
    27,689.05x = 38,214.54 × 15,750.08
  4. Step 4: Simplify right side
    27,689.05x = 601,882,062.16
  5. Step 5: Solve for x
    x = 601,882,062.16/27,689.05
  6. Step 6: Final answer
    x = 21,737.19

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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.