Home / 21,333.47-31,989.66-6,538.82

Finding the Fourth Proportional to 21,333.47, 31,989.66 and 6,538.82

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Solution

The fourth proportional to 21,333.47, 31,989.66 and 6,538.82 is: 9,804.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,333.47 : 31,989.66 = 6,538.82 : x
  2. Step 2: Convert to fraction form
    21,333.47/31,989.66 = 6,538.82/x
  3. Step 3: Cross multiply
    21,333.47x = 31,989.66 × 6,538.82
  4. Step 4: Simplify right side
    21,333.47x = 209,174,468.65
  5. Step 5: Solve for x
    x = 209,174,468.65/21,333.47
  6. Step 6: Final answer
    x = 9,804.99

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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.