Home / 27,639.16-38,142.29-15,063.91

Finding the Fourth Proportional to 27,639.16, 38,142.29 and 15,063.91

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Solution

The fourth proportional to 27,639.16, 38,142.29 and 15,063.91 is: 20,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,639.16 : 38,142.29 = 15,063.91 : x
  2. Step 2: Convert to fraction form
    27,639.16/38,142.29 = 15,063.91/x
  3. Step 3: Cross multiply
    27,639.16x = 38,142.29 × 15,063.91
  4. Step 4: Simplify right side
    27,639.16x = 574,571,966.06
  5. Step 5: Solve for x
    x = 574,571,966.06/27,639.16
  6. Step 6: Final answer
    x = 20,788.33

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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.