Home / 21,960.20-32,940.37-5,320.19

Finding the Fourth Proportional to 21,960.20, 32,940.37 and 5,320.19

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Solution

The fourth proportional to 21,960.20, 32,940.37 and 5,320.19 is: 7,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.20 : 32,940.37 = 5,320.19 : x
  2. Step 2: Convert to fraction form
    21,960.20/32,940.37 = 5,320.19/x
  3. Step 3: Cross multiply
    21,960.20x = 32,940.37 × 5,320.19
  4. Step 4: Simplify right side
    21,960.20x = 175,249,027.07
  5. Step 5: Solve for x
    x = 175,249,027.07/21,960.20
  6. Step 6: Final answer
    x = 7,980.30

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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.