Home / 27,800.18-38,366.99-15,865.31

Finding the Fourth Proportional to 27,800.18, 38,366.99 and 15,865.31

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Solution

The fourth proportional to 27,800.18, 38,366.99 and 15,865.31 is: 21,895.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,800.18 : 38,366.99 = 15,865.31 : x
  2. Step 2: Convert to fraction form
    27,800.18/38,366.99 = 15,865.31/x
  3. Step 3: Cross multiply
    27,800.18x = 38,366.99 × 15,865.31
  4. Step 4: Simplify right side
    27,800.18x = 608,703,918.96
  5. Step 5: Solve for x
    x = 608,703,918.96/27,800.18
  6. Step 6: Final answer
    x = 21,895.69

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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.