Home / 47,064.28-70,621.06-18,991.32

Finding the Fourth Proportional to 47,064.28, 70,621.06 and 18,991.32

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Solution

The fourth proportional to 47,064.28, 70,621.06 and 18,991.32 is: 28,496.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,064.28 : 70,621.06 = 18,991.32 : x
  2. Step 2: Convert to fraction form
    47,064.28/70,621.06 = 18,991.32/x
  3. Step 3: Cross multiply
    47,064.28x = 70,621.06 × 18,991.32
  4. Step 4: Simplify right side
    47,064.28x = 1,341,187,149.20
  5. Step 5: Solve for x
    x = 1,341,187,149.20/47,064.28
  6. Step 6: Final answer
    x = 28,496.92

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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.