Home / 38,939.74-53,737.05-21,944.24

Finding the Fourth Proportional to 38,939.74, 53,737.05 and 21,944.24

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Solution

The fourth proportional to 38,939.74, 53,737.05 and 21,944.24 is: 30,283.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,939.74 : 53,737.05 = 21,944.24 : x
  2. Step 2: Convert to fraction form
    38,939.74/53,737.05 = 21,944.24/x
  3. Step 3: Cross multiply
    38,939.74x = 53,737.05 × 21,944.24
  4. Step 4: Simplify right side
    38,939.74x = 1,179,218,703.19
  5. Step 5: Solve for x
    x = 1,179,218,703.19/38,939.74
  6. Step 6: Final answer
    x = 30,283.17

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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.