Home / 43,802.60-65,720.10-14,221.40

Finding the Fourth Proportional to 43,802.60, 65,720.10 and 14,221.40

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Solution

The fourth proportional to 43,802.60, 65,720.10 and 14,221.40 is: 21,337.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,802.60 : 65,720.10 = 14,221.40 : x
  2. Step 2: Convert to fraction form
    43,802.60/65,720.10 = 14,221.40/x
  3. Step 3: Cross multiply
    43,802.60x = 65,720.10 × 14,221.40
  4. Step 4: Simplify right side
    43,802.60x = 934,631,830.14
  5. Step 5: Solve for x
    x = 934,631,830.14/43,802.60
  6. Step 6: Final answer
    x = 21,337.36

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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.