Home / 28,079.86-38,751.79-15,334.23

Finding the Fourth Proportional to 28,079.86, 38,751.79 and 15,334.23

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Solution

The fourth proportional to 28,079.86, 38,751.79 and 15,334.23 is: 21,162.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,079.86 : 38,751.79 = 15,334.23 : x
  2. Step 2: Convert to fraction form
    28,079.86/38,751.79 = 15,334.23/x
  3. Step 3: Cross multiply
    28,079.86x = 38,751.79 × 15,334.23
  4. Step 4: Simplify right side
    28,079.86x = 594,228,860.77
  5. Step 5: Solve for x
    x = 594,228,860.77/28,079.86
  6. Step 6: Final answer
    x = 21,162.10

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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.