Home / 39,909.05-55,079.47-22,918.60

Finding the Fourth Proportional to 39,909.05, 55,079.47 and 22,918.60

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Solution

The fourth proportional to 39,909.05, 55,079.47 and 22,918.60 is: 31,630.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,909.05 : 55,079.47 = 22,918.60 : x
  2. Step 2: Convert to fraction form
    39,909.05/55,079.47 = 22,918.60/x
  3. Step 3: Cross multiply
    39,909.05x = 55,079.47 × 22,918.60
  4. Step 4: Simplify right side
    39,909.05x = 1,262,344,341.14
  5. Step 5: Solve for x
    x = 1,262,344,341.14/39,909.05
  6. Step 6: Final answer
    x = 31,630.53

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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.