Home / 14,579.95-21,870.62-4,720

Finding the Fourth Proportional to 14,579.95, 21,870.62 and 4,720

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Solution

The fourth proportional to 14,579.95, 21,870.62 and 4,720 is: 7,080.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.95 : 21,870.62 = 4,720 : x
  2. Step 2: Convert to fraction form
    14,579.95/21,870.62 = 4,720/x
  3. Step 3: Cross multiply
    14,579.95x = 21,870.62 × 4,720
  4. Step 4: Simplify right side
    14,579.95x = 103,229,326.40
  5. Step 5: Solve for x
    x = 103,229,326.40/14,579.95
  6. Step 6: Final answer
    x = 7,080.22

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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.