Home / 21,225.54-31,796.27-14,545.62

Finding the Fourth Proportional to 21,225.54, 31,796.27 and 14,545.62

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Solution

The fourth proportional to 21,225.54, 31,796.27 and 14,545.62 is: 21,789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.54 : 31,796.27 = 14,545.62 : x
  2. Step 2: Convert to fraction form
    21,225.54/31,796.27 = 14,545.62/x
  3. Step 3: Cross multiply
    21,225.54x = 31,796.27 × 14,545.62
  4. Step 4: Simplify right side
    21,225.54x = 462,496,388.11
  5. Step 5: Solve for x
    x = 462,496,388.11/21,225.54
  6. Step 6: Final answer
    x = 21,789.62

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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.