Home / 21,039.12-31,563.51-6,247.71

Finding the Fourth Proportional to 21,039.12, 31,563.51 and 6,247.71

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Solution

The fourth proportional to 21,039.12, 31,563.51 and 6,247.71 is: 9,373.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.12 : 31,563.51 = 6,247.71 : x
  2. Step 2: Convert to fraction form
    21,039.12/31,563.51 = 6,247.71/x
  3. Step 3: Cross multiply
    21,039.12x = 31,563.51 × 6,247.71
  4. Step 4: Simplify right side
    21,039.12x = 197,199,657.06
  5. Step 5: Solve for x
    x = 197,199,657.06/21,039.12
  6. Step 6: Final answer
    x = 9,373.00

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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.