Home / 28,780.01-39,719.25-16,842.63

Finding the Fourth Proportional to 28,780.01, 39,719.25 and 16,842.63

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Solution

The fourth proportional to 28,780.01, 39,719.25 and 16,842.63 is: 23,244.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.01 : 39,719.25 = 16,842.63 : x
  2. Step 2: Convert to fraction form
    28,780.01/39,719.25 = 16,842.63/x
  3. Step 3: Cross multiply
    28,780.01x = 39,719.25 × 16,842.63
  4. Step 4: Simplify right side
    28,780.01x = 668,976,631.63
  5. Step 5: Solve for x
    x = 668,976,631.63/28,780.01
  6. Step 6: Final answer
    x = 23,244.49

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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.