Home / 27,943.68-38,561.94-15,368.16

Finding the Fourth Proportional to 27,943.68, 38,561.94 and 15,368.16

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Solution

The fourth proportional to 27,943.68, 38,561.94 and 15,368.16 is: 21,207.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,943.68 : 38,561.94 = 15,368.16 : x
  2. Step 2: Convert to fraction form
    27,943.68/38,561.94 = 15,368.16/x
  3. Step 3: Cross multiply
    27,943.68x = 38,561.94 × 15,368.16
  4. Step 4: Simplify right side
    27,943.68x = 592,626,063.83
  5. Step 5: Solve for x
    x = 592,626,063.83/27,943.68
  6. Step 6: Final answer
    x = 21,207.87

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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.