Home / 21,405.96-29,473.14-19,437.66

Finding the Fourth Proportional to 21,405.96, 29,473.14 and 19,437.66

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Solution

The fourth proportional to 21,405.96, 29,473.14 and 19,437.66 is: 26,763.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405.96 : 29,473.14 = 19,437.66 : x
  2. Step 2: Convert to fraction form
    21,405.96/29,473.14 = 19,437.66/x
  3. Step 3: Cross multiply
    21,405.96x = 29,473.14 × 19,437.66
  4. Step 4: Simplify right side
    21,405.96x = 572,888,874.45
  5. Step 5: Solve for x
    x = 572,888,874.45/21,405.96
  6. Step 6: Final answer
    x = 26,763.05

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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.