Home / 21,324.29-29,411.66-15,657.26

Finding the Fourth Proportional to 21,324.29, 29,411.66 and 15,657.26

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Solution

The fourth proportional to 21,324.29, 29,411.66 and 15,657.26 is: 21,595.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.29 : 29,411.66 = 15,657.26 : x
  2. Step 2: Convert to fraction form
    21,324.29/29,411.66 = 15,657.26/x
  3. Step 3: Cross multiply
    21,324.29x = 29,411.66 × 15,657.26
  4. Step 4: Simplify right side
    21,324.29x = 460,505,929.37
  5. Step 5: Solve for x
    x = 460,505,929.37/21,324.29
  6. Step 6: Final answer
    x = 21,595.37

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1.5x scale

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.