Home / 28,341.81-42,494.46-13,550.40

Finding the Fourth Proportional to 28,341.81, 42,494.46 and 13,550.40

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Solution

The fourth proportional to 28,341.81, 42,494.46 and 13,550.40 is: 20,316.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341.81 : 42,494.46 = 13,550.40 : x
  2. Step 2: Convert to fraction form
    28,341.81/42,494.46 = 13,550.40/x
  3. Step 3: Cross multiply
    28,341.81x = 42,494.46 × 13,550.40
  4. Step 4: Simplify right side
    28,341.81x = 575,816,930.78
  5. Step 5: Solve for x
    x = 575,816,930.78/28,341.81
  6. Step 6: Final answer
    x = 20,316.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.