Home / 28,707.28-43,065.53-9,992.63

Finding the Fourth Proportional to 28,707.28, 43,065.53 and 9,992.63

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Solution

The fourth proportional to 28,707.28, 43,065.53 and 9,992.63 is: 14,990.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.28 : 43,065.53 = 9,992.63 : x
  2. Step 2: Convert to fraction form
    28,707.28/43,065.53 = 9,992.63/x
  3. Step 3: Cross multiply
    28,707.28x = 43,065.53 × 9,992.63
  4. Step 4: Simplify right side
    28,707.28x = 430,337,907.04
  5. Step 5: Solve for x
    x = 430,337,907.04/28,707.28
  6. Step 6: Final answer
    x = 14,990.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.