Home / 14,147.10-21,200.52-10,420.02

Finding the Fourth Proportional to 14,147.10, 21,200.52 and 10,420.02

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Solution

The fourth proportional to 14,147.10, 21,200.52 and 10,420.02 is: 15,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.10 : 21,200.52 = 10,420.02 : x
  2. Step 2: Convert to fraction form
    14,147.10/21,200.52 = 10,420.02/x
  3. Step 3: Cross multiply
    14,147.10x = 21,200.52 × 10,420.02
  4. Step 4: Simplify right side
    14,147.10x = 220,909,842.41
  5. Step 5: Solve for x
    x = 220,909,842.41/14,147.10
  6. Step 6: Final answer
    x = 15,615.20

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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.