Home / 20,985.13-31,466.86-6,192.13

Finding the Fourth Proportional to 20,985.13, 31,466.86 and 6,192.13

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Solution

The fourth proportional to 20,985.13, 31,466.86 and 6,192.13 is: 9,285.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,985.13 : 31,466.86 = 6,192.13 : x
  2. Step 2: Convert to fraction form
    20,985.13/31,466.86 = 6,192.13/x
  3. Step 3: Cross multiply
    20,985.13x = 31,466.86 × 6,192.13
  4. Step 4: Simplify right side
    20,985.13x = 194,846,887.81
  5. Step 5: Solve for x
    x = 194,846,887.81/20,985.13
  6. Step 6: Final answer
    x = 9,285.00

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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.