Home / 21,000.30-31,501.44-6,210.36

Finding the Fourth Proportional to 21,000.30, 31,501.44 and 6,210.36

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Solution

The fourth proportional to 21,000.30, 31,501.44 and 6,210.36 is: 9,315.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000.30 : 31,501.44 = 6,210.36 : x
  2. Step 2: Convert to fraction form
    21,000.30/31,501.44 = 6,210.36/x
  3. Step 3: Cross multiply
    21,000.30x = 31,501.44 × 6,210.36
  4. Step 4: Simplify right side
    21,000.30x = 195,635,282.92
  5. Step 5: Solve for x
    x = 195,635,282.92/21,000.30
  6. Step 6: Final answer
    x = 9,315.83

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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.