Home / 21,359.08-29,480.52-13,808.26

Finding the Fourth Proportional to 21,359.08, 29,480.52 and 13,808.26

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Solution

The fourth proportional to 21,359.08, 29,480.52 and 13,808.26 is: 19,058.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,359.08 : 29,480.52 = 13,808.26 : x
  2. Step 2: Convert to fraction form
    21,359.08/29,480.52 = 13,808.26/x
  3. Step 3: Cross multiply
    21,359.08x = 29,480.52 × 13,808.26
  4. Step 4: Simplify right side
    21,359.08x = 407,074,685.10
  5. Step 5: Solve for x
    x = 407,074,685.10/21,359.08
  6. Step 6: Final answer
    x = 19,058.62

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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.