Home / 39,975.15-55,168.38-22,985.00

Finding the Fourth Proportional to 39,975.15, 55,168.38 and 22,985.00

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Solution

The fourth proportional to 39,975.15, 55,168.38 and 22,985.00 is: 31,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975.15 : 55,168.38 = 22,985.00 : x
  2. Step 2: Convert to fraction form
    39,975.15/55,168.38 = 22,985.00/x
  3. Step 3: Cross multiply
    39,975.15x = 55,168.38 × 22,985.00
  4. Step 4: Simplify right side
    39,975.15x = 1,268,044,938.46
  5. Step 5: Solve for x
    x = 1,268,044,938.46/39,975.15
  6. Step 6: Final answer
    x = 31,720.83

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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.