Home / 38,704.29-53,407.65-21,705.04

Finding the Fourth Proportional to 38,704.29, 53,407.65 and 21,705.04

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Solution

The fourth proportional to 38,704.29, 53,407.65 and 21,705.04 is: 29,950.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,704.29 : 53,407.65 = 21,705.04 : x
  2. Step 2: Convert to fraction form
    38,704.29/53,407.65 = 21,705.04/x
  3. Step 3: Cross multiply
    38,704.29x = 53,407.65 × 21,705.04
  4. Step 4: Simplify right side
    38,704.29x = 1,159,214,939.84
  5. Step 5: Solve for x
    x = 1,159,214,939.84/38,704.29
  6. Step 6: Final answer
    x = 29,950.55

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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.