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Finding the Fourth Proportional to 47,043, 70,569.36 and 18,972.72

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Solution

The fourth proportional to 47,043, 70,569.36 and 18,972.72 is: 28,461.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,043 : 70,569.36 = 18,972.72 : x
  2. Step 2: Convert to fraction form
    47,043/70,569.36 = 18,972.72/x
  3. Step 3: Cross multiply
    47,043x = 70,569.36 × 18,972.72
  4. Step 4: Simplify right side
    47,043x = 1,338,892,707.86
  5. Step 5: Solve for x
    x = 1,338,892,707.86/47,043
  6. Step 6: Final answer
    x = 28,461.04

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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.