Home / 38,416.18-53,010.45-21,418.83

Finding the Fourth Proportional to 38,416.18, 53,010.45 and 21,418.83

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Solution

The fourth proportional to 38,416.18, 53,010.45 and 21,418.83 is: 29,555.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,416.18 : 53,010.45 = 21,418.83 : x
  2. Step 2: Convert to fraction form
    38,416.18/53,010.45 = 21,418.83/x
  3. Step 3: Cross multiply
    38,416.18x = 53,010.45 × 21,418.83
  4. Step 4: Simplify right side
    38,416.18x = 1,135,421,816.77
  5. Step 5: Solve for x
    x = 1,135,421,816.77/38,416.18
  6. Step 6: Final answer
    x = 29,555.82

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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.