Home / 38,939.49-53,736.50-21,034.51

Finding the Fourth Proportional to 38,939.49, 53,736.50 and 21,034.51

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Solution

The fourth proportional to 38,939.49, 53,736.50 and 21,034.51 is: 29,027.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,939.49 : 53,736.50 = 21,034.51 : x
  2. Step 2: Convert to fraction form
    38,939.49/53,736.50 = 21,034.51/x
  3. Step 3: Cross multiply
    38,939.49x = 53,736.50 × 21,034.51
  4. Step 4: Simplify right side
    38,939.49x = 1,130,320,864.86
  5. Step 5: Solve for x
    x = 1,130,320,864.86/38,939.49
  6. Step 6: Final answer
    x = 29,027.62

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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.