Home / 27,689.93-38,210.77-15,752.15

Finding the Fourth Proportional to 27,689.93, 38,210.77 and 15,752.15

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Solution

The fourth proportional to 27,689.93, 38,210.77 and 15,752.15 is: 21,737.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,689.93 : 38,210.77 = 15,752.15 : x
  2. Step 2: Convert to fraction form
    27,689.93/38,210.77 = 15,752.15/x
  3. Step 3: Cross multiply
    27,689.93x = 38,210.77 × 15,752.15
  4. Step 4: Simplify right side
    27,689.93x = 601,901,780.66
  5. Step 5: Solve for x
    x = 601,901,780.66/27,689.93
  6. Step 6: Final answer
    x = 21,737.21

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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.