Home / 21,159.65-29,203.92-13,094.21

Finding the Fourth Proportional to 21,159.65, 29,203.92 and 13,094.21

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Solution

The fourth proportional to 21,159.65, 29,203.92 and 13,094.21 is: 18,072.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.65 : 29,203.92 = 13,094.21 : x
  2. Step 2: Convert to fraction form
    21,159.65/29,203.92 = 13,094.21/x
  3. Step 3: Cross multiply
    21,159.65x = 29,203.92 × 13,094.21
  4. Step 4: Simplify right side
    21,159.65x = 382,402,115.28
  5. Step 5: Solve for x
    x = 382,402,115.28/21,159.65
  6. Step 6: Final answer
    x = 18,072.24

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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.