Home / 27,703.24-38,230.68-15,128.32

Finding the Fourth Proportional to 27,703.24, 38,230.68 and 15,128.32

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Solution

The fourth proportional to 27,703.24, 38,230.68 and 15,128.32 is: 20,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,703.24 : 38,230.68 = 15,128.32 : x
  2. Step 2: Convert to fraction form
    27,703.24/38,230.68 = 15,128.32/x
  3. Step 3: Cross multiply
    27,703.24x = 38,230.68 × 15,128.32
  4. Step 4: Simplify right side
    27,703.24x = 578,365,960.86
  5. Step 5: Solve for x
    x = 578,365,960.86/27,703.24
  6. Step 6: Final answer
    x = 20,877.20

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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.