Home / 14,571.60-21,839.76-10,389.12

Finding the Fourth Proportional to 14,571.60, 21,839.76 and 10,389.12

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Solution

The fourth proportional to 14,571.60, 21,839.76 and 10,389.12 is: 15,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,571.60 : 21,839.76 = 10,389.12 : x
  2. Step 2: Convert to fraction form
    14,571.60/21,839.76 = 10,389.12/x
  3. Step 3: Cross multiply
    14,571.60x = 21,839.76 × 10,389.12
  4. Step 4: Simplify right side
    14,571.60x = 226,895,887.41
  5. Step 5: Solve for x
    x = 226,895,887.41/14,571.60
  6. Step 6: Final answer
    x = 15,571.10

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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.