Home / 21,027.99-31,547.66-6,990.29

Finding the Fourth Proportional to 21,027.99, 31,547.66 and 6,990.29

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Solution

The fourth proportional to 21,027.99, 31,547.66 and 6,990.29 is: 10,487.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027.99 : 31,547.66 = 6,990.29 : x
  2. Step 2: Convert to fraction form
    21,027.99/31,547.66 = 6,990.29/x
  3. Step 3: Cross multiply
    21,027.99x = 31,547.66 × 6,990.29
  4. Step 4: Simplify right side
    21,027.99x = 220,527,292.22
  5. Step 5: Solve for x
    x = 220,527,292.22/21,027.99
  6. Step 6: Final answer
    x = 10,487.32

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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.