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Finding the Fourth Proportional to 43,394.94, 65,102.18 and 15,316.99

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Solution

The fourth proportional to 43,394.94, 65,102.18 and 15,316.99 is: 22,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,394.94 : 65,102.18 = 15,316.99 : x
  2. Step 2: Convert to fraction form
    43,394.94/65,102.18 = 15,316.99/x
  3. Step 3: Cross multiply
    43,394.94x = 65,102.18 × 15,316.99
  4. Step 4: Simplify right side
    43,394.94x = 997,169,440.04
  5. Step 5: Solve for x
    x = 997,169,440.04/43,394.94
  6. Step 6: Final answer
    x = 22,978.93

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1.5x scale

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.