Home / 39,678.48-54,742.74-22,670.52

Finding the Fourth Proportional to 39,678.48, 54,742.74 and 22,670.52

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Solution

The fourth proportional to 39,678.48, 54,742.74 and 22,670.52 is: 31,277.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,678.48 : 54,742.74 = 22,670.52 : x
  2. Step 2: Convert to fraction form
    39,678.48/54,742.74 = 22,670.52/x
  3. Step 3: Cross multiply
    39,678.48x = 54,742.74 × 22,670.52
  4. Step 4: Simplify right side
    39,678.48x = 1,241,046,382.02
  5. Step 5: Solve for x
    x = 1,241,046,382.02/39,678.48
  6. Step 6: Final answer
    x = 31,277.57

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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.