Home / 14,047.16-21,068.30-5,280.53

Finding the Fourth Proportional to 14,047.16, 21,068.30 and 5,280.53

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Solution

The fourth proportional to 14,047.16, 21,068.30 and 5,280.53 is: 7,919.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,047.16 : 21,068.30 = 5,280.53 : x
  2. Step 2: Convert to fraction form
    14,047.16/21,068.30 = 5,280.53/x
  3. Step 3: Cross multiply
    14,047.16x = 21,068.30 × 5,280.53
  4. Step 4: Simplify right side
    14,047.16x = 111,251,698.06
  5. Step 5: Solve for x
    x = 111,251,698.06/14,047.16
  6. Step 6: Final answer
    x = 7,919.87

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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.