Home / 20,501.18-30,752.59-5,711.39

Finding the Fourth Proportional to 20,501.18, 30,752.59 and 5,711.39

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Solution

The fourth proportional to 20,501.18, 30,752.59 and 5,711.39 is: 8,567.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.18 : 30,752.59 = 5,711.39 : x
  2. Step 2: Convert to fraction form
    20,501.18/30,752.59 = 5,711.39/x
  3. Step 3: Cross multiply
    20,501.18x = 30,752.59 × 5,711.39
  4. Step 4: Simplify right side
    20,501.18x = 175,640,097.60
  5. Step 5: Solve for x
    x = 175,640,097.60/20,501.18
  6. Step 6: Final answer
    x = 8,567.32

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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.