Home / 28,828.13-39,790.10-16,260.17

Finding the Fourth Proportional to 28,828.13, 39,790.10 and 16,260.17

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Solution

The fourth proportional to 28,828.13, 39,790.10 and 16,260.17 is: 22,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828.13 : 39,790.10 = 16,260.17 : x
  2. Step 2: Convert to fraction form
    28,828.13/39,790.10 = 16,260.17/x
  3. Step 3: Cross multiply
    28,828.13x = 39,790.10 × 16,260.17
  4. Step 4: Simplify right side
    28,828.13x = 646,993,632.02
  5. Step 5: Solve for x
    x = 646,993,632.02/28,828.13
  6. Step 6: Final answer
    x = 22,443.14

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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.