Home / 28,768.65-43,097.69-17,642.90

Finding the Fourth Proportional to 28,768.65, 43,097.69 and 17,642.90

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Solution

The fourth proportional to 28,768.65, 43,097.69 and 17,642.90 is: 26,430.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.65 : 43,097.69 = 17,642.90 : x
  2. Step 2: Convert to fraction form
    28,768.65/43,097.69 = 17,642.90/x
  3. Step 3: Cross multiply
    28,768.65x = 43,097.69 × 17,642.90
  4. Step 4: Simplify right side
    28,768.65x = 760,368,234.90
  5. Step 5: Solve for x
    x = 760,368,234.90/28,768.65
  6. Step 6: Final answer
    x = 26,430.45

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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.