Home / 20,897.06-31,353.80-9,202.07

Finding the Fourth Proportional to 20,897.06, 31,353.80 and 9,202.07

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Solution

The fourth proportional to 20,897.06, 31,353.80 and 9,202.07 is: 13,806.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.06 : 31,353.80 = 9,202.07 : x
  2. Step 2: Convert to fraction form
    20,897.06/31,353.80 = 9,202.07/x
  3. Step 3: Cross multiply
    20,897.06x = 31,353.80 × 9,202.07
  4. Step 4: Simplify right side
    20,897.06x = 288,519,894.74
  5. Step 5: Solve for x
    x = 288,519,894.74/20,897.06
  6. Step 6: Final answer
    x = 13,806.73

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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.