Home / 20,894.02-31,351.01-9,205.70

Finding the Fourth Proportional to 20,894.02, 31,351.01 and 9,205.70

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Solution

The fourth proportional to 20,894.02, 31,351.01 and 9,205.70 is: 13,812.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894.02 : 31,351.01 = 9,205.70 : x
  2. Step 2: Convert to fraction form
    20,894.02/31,351.01 = 9,205.70/x
  3. Step 3: Cross multiply
    20,894.02x = 31,351.01 × 9,205.70
  4. Step 4: Simplify right side
    20,894.02x = 288,607,992.76
  5. Step 5: Solve for x
    x = 288,607,992.76/20,894.02
  6. Step 6: Final answer
    x = 13,812.95

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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.