Home / 47,022.64-70,533.16-18,942

Finding the Fourth Proportional to 47,022.64, 70,533.16 and 18,942

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Solution

The fourth proportional to 47,022.64, 70,533.16 and 18,942 is: 28,412.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,022.64 : 70,533.16 = 18,942 : x
  2. Step 2: Convert to fraction form
    47,022.64/70,533.16 = 18,942/x
  3. Step 3: Cross multiply
    47,022.64x = 70,533.16 × 18,942
  4. Step 4: Simplify right side
    47,022.64x = 1,336,039,116.72
  5. Step 5: Solve for x
    x = 1,336,039,116.72/47,022.64
  6. Step 6: Final answer
    x = 28,412.68

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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.