Home / 21,765.02-32,690.73-18,643.82

Finding the Fourth Proportional to 21,765.02, 32,690.73 and 18,643.82

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Solution

The fourth proportional to 21,765.02, 32,690.73 and 18,643.82 is: 28,002.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,765.02 : 32,690.73 = 18,643.82 : x
  2. Step 2: Convert to fraction form
    21,765.02/32,690.73 = 18,643.82/x
  3. Step 3: Cross multiply
    21,765.02x = 32,690.73 × 18,643.82
  4. Step 4: Simplify right side
    21,765.02x = 609,480,085.79
  5. Step 5: Solve for x
    x = 609,480,085.79/21,765.02
  6. Step 6: Final answer
    x = 28,002.73

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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.