Home / 27,790.24-38,349.60-15,214.72

Finding the Fourth Proportional to 27,790.24, 38,349.60 and 15,214.72

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Solution

The fourth proportional to 27,790.24, 38,349.60 and 15,214.72 is: 20,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,790.24 : 38,349.60 = 15,214.72 : x
  2. Step 2: Convert to fraction form
    27,790.24/38,349.60 = 15,214.72/x
  3. Step 3: Cross multiply
    27,790.24x = 38,349.60 × 15,214.72
  4. Step 4: Simplify right side
    27,790.24x = 583,478,426.11
  5. Step 5: Solve for x
    x = 583,478,426.11/27,790.24
  6. Step 6: Final answer
    x = 20,995.80

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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.