Home / 27,636.63-38,138.81-15,061.65

Finding the Fourth Proportional to 27,636.63, 38,138.81 and 15,061.65

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Solution

The fourth proportional to 27,636.63, 38,138.81 and 15,061.65 is: 20,785.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,636.63 : 38,138.81 = 15,061.65 : x
  2. Step 2: Convert to fraction form
    27,636.63/38,138.81 = 15,061.65/x
  3. Step 3: Cross multiply
    27,636.63x = 38,138.81 × 15,061.65
  4. Step 4: Simplify right side
    27,636.63x = 574,433,407.64
  5. Step 5: Solve for x
    x = 574,433,407.64/27,636.63
  6. Step 6: Final answer
    x = 20,785.22

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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.