Home / 21,265.92-29,352.96-13,816.32

Finding the Fourth Proportional to 21,265.92, 29,352.96 and 13,816.32

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Solution

The fourth proportional to 21,265.92, 29,352.96 and 13,816.32 is: 19,070.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265.92 : 29,352.96 = 13,816.32 : x
  2. Step 2: Convert to fraction form
    21,265.92/29,352.96 = 13,816.32/x
  3. Step 3: Cross multiply
    21,265.92x = 29,352.96 × 13,816.32
  4. Step 4: Simplify right side
    21,265.92x = 405,549,888.31
  5. Step 5: Solve for x
    x = 405,549,888.31/21,265.92
  6. Step 6: Final answer
    x = 19,070.41

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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.