Home / 21,551.01-29,723.52-14,749.06

Finding the Fourth Proportional to 21,551.01, 29,723.52 and 14,749.06

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Solution

The fourth proportional to 21,551.01, 29,723.52 and 14,749.06 is: 20,342.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.01 : 29,723.52 = 14,749.06 : x
  2. Step 2: Convert to fraction form
    21,551.01/29,723.52 = 14,749.06/x
  3. Step 3: Cross multiply
    21,551.01x = 29,723.52 × 14,749.06
  4. Step 4: Simplify right side
    21,551.01x = 438,393,979.89
  5. Step 5: Solve for x
    x = 438,393,979.89/21,551.01
  6. Step 6: Final answer
    x = 20,342.15

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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.