Home / 20,223.40-30,356.67-17,898.20

Finding the Fourth Proportional to 20,223.40, 30,356.67 and 17,898.20

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Solution

The fourth proportional to 20,223.40, 30,356.67 and 17,898.20 is: 26,866.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.40 : 30,356.67 = 17,898.20 : x
  2. Step 2: Convert to fraction form
    20,223.40/30,356.67 = 17,898.20/x
  3. Step 3: Cross multiply
    20,223.40x = 30,356.67 × 17,898.20
  4. Step 4: Simplify right side
    20,223.40x = 543,329,750.99
  5. Step 5: Solve for x
    x = 543,329,750.99/20,223.40
  6. Step 6: Final answer
    x = 26,866.39

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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.