Home / 39,909.61-55,077.74-22,006.28

Finding the Fourth Proportional to 39,909.61, 55,077.74 and 22,006.28

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Solution

The fourth proportional to 39,909.61, 55,077.74 and 22,006.28 is: 30,370.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,909.61 : 55,077.74 = 22,006.28 : x
  2. Step 2: Convert to fraction form
    39,909.61/55,077.74 = 22,006.28/x
  3. Step 3: Cross multiply
    39,909.61x = 55,077.74 × 22,006.28
  4. Step 4: Simplify right side
    39,909.61x = 1,212,056,278.39
  5. Step 5: Solve for x
    x = 1,212,056,278.39/39,909.61
  6. Step 6: Final answer
    x = 30,370.03

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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.