Home / 20,985.91-31,482.29-6,196.32

Finding the Fourth Proportional to 20,985.91, 31,482.29 and 6,196.32

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Solution

The fourth proportional to 20,985.91, 31,482.29 and 6,196.32 is: 9,295.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,985.91 : 31,482.29 = 6,196.32 : x
  2. Step 2: Convert to fraction form
    20,985.91/31,482.29 = 6,196.32/x
  3. Step 3: Cross multiply
    20,985.91x = 31,482.29 × 6,196.32
  4. Step 4: Simplify right side
    20,985.91x = 195,074,438.00
  5. Step 5: Solve for x
    x = 195,074,438.00/20,985.91
  6. Step 6: Final answer
    x = 9,295.50

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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.