Home / 27,762.28-38,312.86-15,187.04

Finding the Fourth Proportional to 27,762.28, 38,312.86 and 15,187.04

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Solution

The fourth proportional to 27,762.28, 38,312.86 and 15,187.04 is: 20,958.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,762.28 : 38,312.86 = 15,187.04 : x
  2. Step 2: Convert to fraction form
    27,762.28/38,312.86 = 15,187.04/x
  3. Step 3: Cross multiply
    27,762.28x = 38,312.86 × 15,187.04
  4. Step 4: Simplify right side
    27,762.28x = 581,858,937.33
  5. Step 5: Solve for x
    x = 581,858,937.33/27,762.28
  6. Step 6: Final answer
    x = 20,958.61

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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.