Home / 19,328.95-28,993.56-5,288.68

Finding the Fourth Proportional to 19,328.95, 28,993.56 and 5,288.68

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Solution

The fourth proportional to 19,328.95, 28,993.56 and 5,288.68 is: 7,933.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,328.95 : 28,993.56 = 5,288.68 : x
  2. Step 2: Convert to fraction form
    19,328.95/28,993.56 = 5,288.68/x
  3. Step 3: Cross multiply
    19,328.95x = 28,993.56 × 5,288.68
  4. Step 4: Simplify right side
    19,328.95x = 153,337,660.90
  5. Step 5: Solve for x
    x = 153,337,660.90/19,328.95
  6. Step 6: Final answer
    x = 7,933.06

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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.