Home / 20,985.04-31,466.70-6,192.06

Finding the Fourth Proportional to 20,985.04, 31,466.70 and 6,192.06

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Solution

The fourth proportional to 20,985.04, 31,466.70 and 6,192.06 is: 9,284.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,985.04 : 31,466.70 = 6,192.06 : x
  2. Step 2: Convert to fraction form
    20,985.04/31,466.70 = 6,192.06/x
  3. Step 3: Cross multiply
    20,985.04x = 31,466.70 × 6,192.06
  4. Step 4: Simplify right side
    20,985.04x = 194,843,694.40
  5. Step 5: Solve for x
    x = 194,843,694.40/20,985.04
  6. Step 6: Final answer
    x = 9,284.89

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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.