Home / 21,626.04-29,841.84-13,665.36

Finding the Fourth Proportional to 21,626.04, 29,841.84 and 13,665.36

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Solution

The fourth proportional to 21,626.04, 29,841.84 and 13,665.36 is: 18,856.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,626.04 : 29,841.84 = 13,665.36 : x
  2. Step 2: Convert to fraction form
    21,626.04/29,841.84 = 13,665.36/x
  3. Step 3: Cross multiply
    21,626.04x = 29,841.84 × 13,665.36
  4. Step 4: Simplify right side
    21,626.04x = 407,799,486.66
  5. Step 5: Solve for x
    x = 407,799,486.66/21,626.04
  6. Step 6: Final answer
    x = 18,856.87

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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.