Home / 21,240.96-29,316.96-14,540.16

Finding the Fourth Proportional to 21,240.96, 29,316.96 and 14,540.16

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Solution

The fourth proportional to 21,240.96, 29,316.96 and 14,540.16 is: 20,068.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240.96 : 29,316.96 = 14,540.16 : x
  2. Step 2: Convert to fraction form
    21,240.96/29,316.96 = 14,540.16/x
  3. Step 3: Cross multiply
    21,240.96x = 29,316.96 × 14,540.16
  4. Step 4: Simplify right side
    21,240.96x = 426,273,289.11
  5. Step 5: Solve for x
    x = 426,273,289.11/21,240.96
  6. Step 6: Final answer
    x = 20,068.46

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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.