Home / 38,550.18-57,785.88-21,875.00

Finding the Fourth Proportional to 38,550.18, 57,785.88 and 21,875.00

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Solution

The fourth proportional to 38,550.18, 57,785.88 and 21,875.00 is: 32,790.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,550.18 : 57,785.88 = 21,875.00 : x
  2. Step 2: Convert to fraction form
    38,550.18/57,785.88 = 21,875.00/x
  3. Step 3: Cross multiply
    38,550.18x = 57,785.88 × 21,875.00
  4. Step 4: Simplify right side
    38,550.18x = 1,264,065,836.07
  5. Step 5: Solve for x
    x = 1,264,065,836.07/38,550.18
  6. Step 6: Final answer
    x = 32,790.14

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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.