Home / 39,975.86-55,166.78-22,070.90

Finding the Fourth Proportional to 39,975.86, 55,166.78 and 22,070.90

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Solution

The fourth proportional to 39,975.86, 55,166.78 and 22,070.90 is: 30,457.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975.86 : 55,166.78 = 22,070.90 : x
  2. Step 2: Convert to fraction form
    39,975.86/55,166.78 = 22,070.90/x
  3. Step 3: Cross multiply
    39,975.86x = 55,166.78 × 22,070.90
  4. Step 4: Simplify right side
    39,975.86x = 1,217,580,484.70
  5. Step 5: Solve for x
    x = 1,217,580,484.70/39,975.86
  6. Step 6: Final answer
    x = 30,457.89

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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.