Home / 38,751.06-58,077.84-20,981.01

Finding the Fourth Proportional to 38,751.06, 58,077.84 and 20,981.01

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Solution

The fourth proportional to 38,751.06, 58,077.84 and 20,981.01 is: 31,445.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,751.06 : 58,077.84 = 20,981.01 : x
  2. Step 2: Convert to fraction form
    38,751.06/58,077.84 = 20,981.01/x
  3. Step 3: Cross multiply
    38,751.06x = 58,077.84 × 20,981.01
  4. Step 4: Simplify right side
    38,751.06x = 1,218,531,741.82
  5. Step 5: Solve for x
    x = 1,218,531,741.82/38,751.06
  6. Step 6: Final answer
    x = 31,445.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.