Home / 21,795.81-32,726.51-12,446.38

Finding the Fourth Proportional to 21,795.81, 32,726.51 and 12,446.38

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Solution

The fourth proportional to 21,795.81, 32,726.51 and 12,446.38 is: 18,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,795.81 : 32,726.51 = 12,446.38 : x
  2. Step 2: Convert to fraction form
    21,795.81/32,726.51 = 12,446.38/x
  3. Step 3: Cross multiply
    21,795.81x = 32,726.51 × 12,446.38
  4. Step 4: Simplify right side
    21,795.81x = 407,326,579.53
  5. Step 5: Solve for x
    x = 407,326,579.53/21,795.81
  6. Step 6: Final answer
    x = 18,688.30

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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.