Home / 27,630.86-38,130.89-15,055.61

Finding the Fourth Proportional to 27,630.86, 38,130.89 and 15,055.61

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Solution

The fourth proportional to 27,630.86, 38,130.89 and 15,055.61 is: 20,776.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,630.86 : 38,130.89 = 15,055.61 : x
  2. Step 2: Convert to fraction form
    27,630.86/38,130.89 = 15,055.61/x
  3. Step 3: Cross multiply
    27,630.86x = 38,130.89 × 15,055.61
  4. Step 4: Simplify right side
    27,630.86x = 574,083,808.79
  5. Step 5: Solve for x
    x = 574,083,808.79/27,630.86
  6. Step 6: Final answer
    x = 20,776.91

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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.