Home / 21,355.66-29,484.67-19,113.65

Finding the Fourth Proportional to 21,355.66, 29,484.67 and 19,113.65

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Solution

The fourth proportional to 21,355.66, 29,484.67 and 19,113.65 is: 26,389.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,355.66 : 29,484.67 = 19,113.65 : x
  2. Step 2: Convert to fraction form
    21,355.66/29,484.67 = 19,113.65/x
  3. Step 3: Cross multiply
    21,355.66x = 29,484.67 × 19,113.65
  4. Step 4: Simplify right side
    21,355.66x = 563,559,467.54
  5. Step 5: Solve for x
    x = 563,559,467.54/21,355.66
  6. Step 6: Final answer
    x = 26,389.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.