Home / 27,689.43-38,210.09-15,751.65

Finding the Fourth Proportional to 27,689.43, 38,210.09 and 15,751.65

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Solution

The fourth proportional to 27,689.43, 38,210.09 and 15,751.65 is: 21,736.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,689.43 : 38,210.09 = 15,751.65 : x
  2. Step 2: Convert to fraction form
    27,689.43/38,210.09 = 15,751.65/x
  3. Step 3: Cross multiply
    27,689.43x = 38,210.09 × 15,751.65
  4. Step 4: Simplify right side
    27,689.43x = 601,871,885.39
  5. Step 5: Solve for x
    x = 601,871,885.39/27,689.43
  6. Step 6: Final answer
    x = 21,736.52

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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.