Home / 43,310.16-64,973.34-13,720.05

Finding the Fourth Proportional to 43,310.16, 64,973.34 and 13,720.05

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Solution

The fourth proportional to 43,310.16, 64,973.34 and 13,720.05 is: 20,582.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,310.16 : 64,973.34 = 13,720.05 : x
  2. Step 2: Convert to fraction form
    43,310.16/64,973.34 = 13,720.05/x
  3. Step 3: Cross multiply
    43,310.16x = 64,973.34 × 13,720.05
  4. Step 4: Simplify right side
    43,310.16x = 891,437,473.47
  5. Step 5: Solve for x
    x = 891,437,473.47/43,310.16
  6. Step 6: Final answer
    x = 20,582.64

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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.