Home / 21,340.38-29,457.78-16,050.45

Finding the Fourth Proportional to 21,340.38, 29,457.78 and 16,050.45

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Solution

The fourth proportional to 21,340.38, 29,457.78 and 16,050.45 is: 22,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340.38 : 29,457.78 = 16,050.45 : x
  2. Step 2: Convert to fraction form
    21,340.38/29,457.78 = 16,050.45/x
  3. Step 3: Cross multiply
    21,340.38x = 29,457.78 × 16,050.45
  4. Step 4: Simplify right side
    21,340.38x = 472,810,625.00
  5. Step 5: Solve for x
    x = 472,810,625.00/21,340.38
  6. Step 6: Final answer
    x = 22,155.68

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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.