Home / 38,470.16-53,089.91-21,474.05

Finding the Fourth Proportional to 38,470.16, 53,089.91 and 21,474.05

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Solution

The fourth proportional to 38,470.16, 53,089.91 and 21,474.05 is: 29,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,470.16 : 53,089.91 = 21,474.05 : x
  2. Step 2: Convert to fraction form
    38,470.16/53,089.91 = 21,474.05/x
  3. Step 3: Cross multiply
    38,470.16x = 53,089.91 × 21,474.05
  4. Step 4: Simplify right side
    38,470.16x = 1,140,055,381.84
  5. Step 5: Solve for x
    x = 1,140,055,381.84/38,470.16
  6. Step 6: Final answer
    x = 29,634.80

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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.