Home / 27,211.32-37,540.89-15,718.64

Finding the Fourth Proportional to 27,211.32, 37,540.89 and 15,718.64

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Solution

The fourth proportional to 27,211.32, 37,540.89 and 15,718.64 is: 21,685.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,211.32 : 37,540.89 = 15,718.64 : x
  2. Step 2: Convert to fraction form
    27,211.32/37,540.89 = 15,718.64/x
  3. Step 3: Cross multiply
    27,211.32x = 37,540.89 × 15,718.64
  4. Step 4: Simplify right side
    27,211.32x = 590,091,547.49
  5. Step 5: Solve for x
    x = 590,091,547.49/27,211.32
  6. Step 6: Final answer
    x = 21,685.52

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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.