Home / 14,039.75-21,061.67-5,720.28

Finding the Fourth Proportional to 14,039.75, 21,061.67 and 5,720.28

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Solution

The fourth proportional to 14,039.75, 21,061.67 and 5,720.28 is: 8,581.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,039.75 : 21,061.67 = 5,720.28 : x
  2. Step 2: Convert to fraction form
    14,039.75/21,061.67 = 5,720.28/x
  3. Step 3: Cross multiply
    14,039.75x = 21,061.67 × 5,720.28
  4. Step 4: Simplify right side
    14,039.75x = 120,478,544.36
  5. Step 5: Solve for x
    x = 120,478,544.36/14,039.75
  6. Step 6: Final answer
    x = 8,581.25

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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.