Home / 21,551.28-29,723.91-14,749.32

Finding the Fourth Proportional to 21,551.28, 29,723.91 and 14,749.32

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Solution

The fourth proportional to 21,551.28, 29,723.91 and 14,749.32 is: 20,342.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.28 : 29,723.91 = 14,749.32 : x
  2. Step 2: Convert to fraction form
    21,551.28/29,723.91 = 14,749.32/x
  3. Step 3: Cross multiply
    21,551.28x = 29,723.91 × 14,749.32
  4. Step 4: Simplify right side
    21,551.28x = 438,407,460.24
  5. Step 5: Solve for x
    x = 438,407,460.24/21,551.28
  6. Step 6: Final answer
    x = 20,342.53

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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.