Home / 28,541.36-42,793.81-13,720.79

Finding the Fourth Proportional to 28,541.36, 42,793.81 and 13,720.79

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Solution

The fourth proportional to 28,541.36, 42,793.81 and 13,720.79 is: 20,572.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,541.36 : 42,793.81 = 13,720.79 : x
  2. Step 2: Convert to fraction form
    28,541.36/42,793.81 = 13,720.79/x
  3. Step 3: Cross multiply
    28,541.36x = 42,793.81 × 13,720.79
  4. Step 4: Simplify right side
    28,541.36x = 587,164,880.31
  5. Step 5: Solve for x
    x = 587,164,880.31/28,541.36
  6. Step 6: Final answer
    x = 20,572.42

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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.