Home / 39,975.22-55,164.95-22,979.02

Finding the Fourth Proportional to 39,975.22, 55,164.95 and 22,979.02

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Solution

The fourth proportional to 39,975.22, 55,164.95 and 22,979.02 is: 31,710.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975.22 : 55,164.95 = 22,979.02 : x
  2. Step 2: Convert to fraction form
    39,975.22/55,164.95 = 22,979.02/x
  3. Step 3: Cross multiply
    39,975.22x = 55,164.95 × 22,979.02
  4. Step 4: Simplify right side
    39,975.22x = 1,267,636,271.00
  5. Step 5: Solve for x
    x = 1,267,636,271.00/39,975.22
  6. Step 6: Final answer
    x = 31,710.55

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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.