Home / 27,688.33-38,209.56-15,751.64

Finding the Fourth Proportional to 27,688.33, 38,209.56 and 15,751.64

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Solution

The fourth proportional to 27,688.33, 38,209.56 and 15,751.64 is: 21,737.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,688.33 : 38,209.56 = 15,751.64 : x
  2. Step 2: Convert to fraction form
    27,688.33/38,209.56 = 15,751.64/x
  3. Step 3: Cross multiply
    27,688.33x = 38,209.56 × 15,751.64
  4. Step 4: Simplify right side
    27,688.33x = 601,863,270.13
  5. Step 5: Solve for x
    x = 601,863,270.13/27,688.33
  6. Step 6: Final answer
    x = 21,737.07

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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.