Home / 43,318.81-64,980.58-13,734.50

Finding the Fourth Proportional to 43,318.81, 64,980.58 and 13,734.50

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Solution

The fourth proportional to 43,318.81, 64,980.58 and 13,734.50 is: 20,602.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,318.81 : 64,980.58 = 13,734.50 : x
  2. Step 2: Convert to fraction form
    43,318.81/64,980.58 = 13,734.50/x
  3. Step 3: Cross multiply
    43,318.81x = 64,980.58 × 13,734.50
  4. Step 4: Simplify right side
    43,318.81x = 892,475,904.13
  5. Step 5: Solve for x
    x = 892,475,904.13/43,318.81
  6. Step 6: Final answer
    x = 20,602.50

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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.