Home / 21,066.24-31,572.02-8,571.74

Finding the Fourth Proportional to 21,066.24, 31,572.02 and 8,571.74

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Solution

The fourth proportional to 21,066.24, 31,572.02 and 8,571.74 is: 12,846.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.24 : 31,572.02 = 8,571.74 : x
  2. Step 2: Convert to fraction form
    21,066.24/31,572.02 = 8,571.74/x
  3. Step 3: Cross multiply
    21,066.24x = 31,572.02 × 8,571.74
  4. Step 4: Simplify right side
    21,066.24x = 270,627,146.71
  5. Step 5: Solve for x
    x = 270,627,146.71/21,066.24
  6. Step 6: Final answer
    x = 12,846.49

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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.