Home / 20,867.52-31,293.84-9,772.32

Finding the Fourth Proportional to 20,867.52, 31,293.84 and 9,772.32

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Solution

The fourth proportional to 20,867.52, 31,293.84 and 9,772.32 is: 14,655.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,867.52 : 31,293.84 = 9,772.32 : x
  2. Step 2: Convert to fraction form
    20,867.52/31,293.84 = 9,772.32/x
  3. Step 3: Cross multiply
    20,867.52x = 31,293.84 × 9,772.32
  4. Step 4: Simplify right side
    20,867.52x = 305,813,418.51
  5. Step 5: Solve for x
    x = 305,813,418.51/20,867.52
  6. Step 6: Final answer
    x = 14,655.00

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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.