Home / 40,890.69-56,471.99-28,176.93

Finding the Fourth Proportional to 40,890.69, 56,471.99 and 28,176.93

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Solution

The fourth proportional to 40,890.69, 56,471.99 and 28,176.93 is: 38,913.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,890.69 : 56,471.99 = 28,176.93 : x
  2. Step 2: Convert to fraction form
    40,890.69/56,471.99 = 28,176.93/x
  3. Step 3: Cross multiply
    40,890.69x = 56,471.99 × 28,176.93
  4. Step 4: Simplify right side
    40,890.69x = 1,591,207,168.31
  5. Step 5: Solve for x
    x = 1,591,207,168.31/40,890.69
  6. Step 6: Final answer
    x = 38,913.68

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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.