Home / 18,947.62-28,421.43-5,798.28

Finding the Fourth Proportional to 18,947.62, 28,421.43 and 5,798.28

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Solution

The fourth proportional to 18,947.62, 28,421.43 and 5,798.28 is: 8,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.62 : 28,421.43 = 5,798.28 : x
  2. Step 2: Convert to fraction form
    18,947.62/28,421.43 = 5,798.28/x
  3. Step 3: Cross multiply
    18,947.62x = 28,421.43 × 5,798.28
  4. Step 4: Simplify right side
    18,947.62x = 164,795,526.59
  5. Step 5: Solve for x
    x = 164,795,526.59/18,947.62
  6. Step 6: Final answer
    x = 8,697.43

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1.5x scale

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.