Home / 38,957.49-58,415.43-20,218.65

Finding the Fourth Proportional to 38,957.49, 58,415.43 and 20,218.65

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Solution

The fourth proportional to 38,957.49, 58,415.43 and 20,218.65 is: 30,317.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,957.49 : 58,415.43 = 20,218.65 : x
  2. Step 2: Convert to fraction form
    38,957.49/58,415.43 = 20,218.65/x
  3. Step 3: Cross multiply
    38,957.49x = 58,415.43 × 20,218.65
  4. Step 4: Simplify right side
    38,957.49x = 1,181,081,133.77
  5. Step 5: Solve for x
    x = 1,181,081,133.77/38,957.49
  6. Step 6: Final answer
    x = 30,317.18

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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.