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Finding the Fourth Proportional to 29,543, 40,746.28 and 18,933.64

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Solution

The fourth proportional to 29,543, 40,746.28 and 18,933.64 is: 26,113.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,543 : 40,746.28 = 18,933.64 : x
  2. Step 2: Convert to fraction form
    29,543/40,746.28 = 18,933.64/x
  3. Step 3: Cross multiply
    29,543x = 40,746.28 × 18,933.64
  4. Step 4: Simplify right side
    29,543x = 771,475,396.86
  5. Step 5: Solve for x
    x = 771,475,396.86/29,543
  6. Step 6: Final answer
    x = 26,113.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.