Home / 28,135.32-38,808.45-18,047.79

Finding the Fourth Proportional to 28,135.32, 38,808.45 and 18,047.79

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Solution

The fourth proportional to 28,135.32, 38,808.45 and 18,047.79 is: 24,894.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.32 : 38,808.45 = 18,047.79 : x
  2. Step 2: Convert to fraction form
    28,135.32/38,808.45 = 18,047.79/x
  3. Step 3: Cross multiply
    28,135.32x = 38,808.45 × 18,047.79
  4. Step 4: Simplify right side
    28,135.32x = 700,406,755.83
  5. Step 5: Solve for x
    x = 700,406,755.83/28,135.32
  6. Step 6: Final answer
    x = 24,894.22

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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.