Home / 20,962.19-31,436.60-6,919.58

Finding the Fourth Proportional to 20,962.19, 31,436.60 and 6,919.58

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Solution

The fourth proportional to 20,962.19, 31,436.60 and 6,919.58 is: 10,377.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.19 : 31,436.60 = 6,919.58 : x
  2. Step 2: Convert to fraction form
    20,962.19/31,436.60 = 6,919.58/x
  3. Step 3: Cross multiply
    20,962.19x = 31,436.60 × 6,919.58
  4. Step 4: Simplify right side
    20,962.19x = 217,528,164.52
  5. Step 5: Solve for x
    x = 217,528,164.52/20,962.19
  6. Step 6: Final answer
    x = 10,377.17

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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.