Home / 27,711.54-38,237.52-15,775.12

Finding the Fourth Proportional to 27,711.54, 38,237.52 and 15,775.12

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Solution

The fourth proportional to 27,711.54, 38,237.52 and 15,775.12 is: 21,767.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,711.54 : 38,237.52 = 15,775.12 : x
  2. Step 2: Convert to fraction form
    27,711.54/38,237.52 = 15,775.12/x
  3. Step 3: Cross multiply
    27,711.54x = 38,237.52 × 15,775.12
  4. Step 4: Simplify right side
    27,711.54x = 603,201,466.50
  5. Step 5: Solve for x
    x = 603,201,466.50/27,711.54
  6. Step 6: Final answer
    x = 21,767.16

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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.