Home / 20,801.06-31,201.62-9,715.53

Finding the Fourth Proportional to 20,801.06, 31,201.62 and 9,715.53

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Solution

The fourth proportional to 20,801.06, 31,201.62 and 9,715.53 is: 14,573.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801.06 : 31,201.62 = 9,715.53 : x
  2. Step 2: Convert to fraction form
    20,801.06/31,201.62 = 9,715.53/x
  3. Step 3: Cross multiply
    20,801.06x = 31,201.62 × 9,715.53
  4. Step 4: Simplify right side
    20,801.06x = 303,140,275.16
  5. Step 5: Solve for x
    x = 303,140,275.16/20,801.06
  6. Step 6: Final answer
    x = 14,573.31

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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.