Home / 27,816-38,386.08-15,240.72

Finding the Fourth Proportional to 27,816, 38,386.08 and 15,240.72

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Solution

The fourth proportional to 27,816, 38,386.08 and 15,240.72 is: 21,032.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,816 : 38,386.08 = 15,240.72 : x
  2. Step 2: Convert to fraction form
    27,816/38,386.08 = 15,240.72/x
  3. Step 3: Cross multiply
    27,816x = 38,386.08 × 15,240.72
  4. Step 4: Simplify right side
    27,816x = 585,031,497.18
  5. Step 5: Solve for x
    x = 585,031,497.18/27,816
  6. Step 6: Final answer
    x = 21,032.19

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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.