Home / 14,104.60-21,148.80-4,242.40

Finding the Fourth Proportional to 14,104.60, 21,148.80 and 4,242.40

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Solution

The fourth proportional to 14,104.60, 21,148.80 and 4,242.40 is: 6,361.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,104.60 : 21,148.80 = 4,242.40 : x
  2. Step 2: Convert to fraction form
    14,104.60/21,148.80 = 4,242.40/x
  3. Step 3: Cross multiply
    14,104.60x = 21,148.80 × 4,242.40
  4. Step 4: Simplify right side
    14,104.60x = 89,721,669.12
  5. Step 5: Solve for x
    x = 89,721,669.12/14,104.60
  6. Step 6: Final answer
    x = 6,361.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.