Home / 21,030.77-31,545.99-6,238.46

Finding the Fourth Proportional to 21,030.77, 31,545.99 and 6,238.46

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Solution

The fourth proportional to 21,030.77, 31,545.99 and 6,238.46 is: 9,357.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030.77 : 31,545.99 = 6,238.46 : x
  2. Step 2: Convert to fraction form
    21,030.77/31,545.99 = 6,238.46/x
  3. Step 3: Cross multiply
    21,030.77x = 31,545.99 × 6,238.46
  4. Step 4: Simplify right side
    21,030.77x = 196,798,239.05
  5. Step 5: Solve for x
    x = 196,798,239.05/21,030.77
  6. Step 6: Final answer
    x = 9,357.64

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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.