Home / 21,791.16-32,690.88-15,535.68

Finding the Fourth Proportional to 21,791.16, 32,690.88 and 15,535.68

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Solution

The fourth proportional to 21,791.16, 32,690.88 and 15,535.68 is: 23,306.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,791.16 : 32,690.88 = 15,535.68 : x
  2. Step 2: Convert to fraction form
    21,791.16/32,690.88 = 15,535.68/x
  3. Step 3: Cross multiply
    21,791.16x = 32,690.88 × 15,535.68
  4. Step 4: Simplify right side
    21,791.16x = 507,875,050.60
  5. Step 5: Solve for x
    x = 507,875,050.60/21,791.16
  6. Step 6: Final answer
    x = 23,306.47

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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.