Home / 28,762.16-39,679.00-16,820.22

Finding the Fourth Proportional to 28,762.16, 39,679.00 and 16,820.22

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Solution

The fourth proportional to 28,762.16, 39,679.00 and 16,820.22 is: 23,204.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,762.16 : 39,679.00 = 16,820.22 : x
  2. Step 2: Convert to fraction form
    28,762.16/39,679.00 = 16,820.22/x
  3. Step 3: Cross multiply
    28,762.16x = 39,679.00 × 16,820.22
  4. Step 4: Simplify right side
    28,762.16x = 667,409,616.13
  5. Step 5: Solve for x
    x = 667,409,616.13/28,762.16
  6. Step 6: Final answer
    x = 23,204.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.