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Finding the Fourth Proportional to 47,268.84, 70,915.56 and 17,689

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Solution

The fourth proportional to 47,268.84, 70,915.56 and 17,689 is: 26,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,268.84 : 70,915.56 = 17,689 : x
  2. Step 2: Convert to fraction form
    47,268.84/70,915.56 = 17,689/x
  3. Step 3: Cross multiply
    47,268.84x = 70,915.56 × 17,689
  4. Step 4: Simplify right side
    47,268.84x = 1,254,425,340.84
  5. Step 5: Solve for x
    x = 1,254,425,340.84/47,268.84
  6. Step 6: Final answer
    x = 26,538.10

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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.