Home / 21,347.08-29,448.52-13,799.88

Finding the Fourth Proportional to 21,347.08, 29,448.52 and 13,799.88

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Solution

The fourth proportional to 21,347.08, 29,448.52 and 13,799.88 is: 19,037.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.08 : 29,448.52 = 13,799.88 : x
  2. Step 2: Convert to fraction form
    21,347.08/29,448.52 = 13,799.88/x
  3. Step 3: Cross multiply
    21,347.08x = 29,448.52 × 13,799.88
  4. Step 4: Simplify right side
    21,347.08x = 406,386,042.18
  5. Step 5: Solve for x
    x = 406,386,042.18/21,347.08
  6. Step 6: Final answer
    x = 19,037.08

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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.