Home / 28,758.02-43,199.93-20,491.16

Finding the Fourth Proportional to 28,758.02, 43,199.93 and 20,491.16

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Solution

The fourth proportional to 28,758.02, 43,199.93 and 20,491.16 is: 30,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.02 : 43,199.93 = 20,491.16 : x
  2. Step 2: Convert to fraction form
    28,758.02/43,199.93 = 20,491.16/x
  3. Step 3: Cross multiply
    28,758.02x = 43,199.93 × 20,491.16
  4. Step 4: Simplify right side
    28,758.02x = 885,216,359.16
  5. Step 5: Solve for x
    x = 885,216,359.16/28,758.02
  6. Step 6: Final answer
    x = 30,781.55

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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.