Home / 15,987.22-23,977.47-4,300.54

Finding the Fourth Proportional to 15,987.22, 23,977.47 and 4,300.54

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Solution

The fourth proportional to 15,987.22, 23,977.47 and 4,300.54 is: 6,449.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.22 : 23,977.47 = 4,300.54 : x
  2. Step 2: Convert to fraction form
    15,987.22/23,977.47 = 4,300.54/x
  3. Step 3: Cross multiply
    15,987.22x = 23,977.47 × 4,300.54
  4. Step 4: Simplify right side
    15,987.22x = 103,116,068.83
  5. Step 5: Solve for x
    x = 103,116,068.83/15,987.22
  6. Step 6: Final answer
    x = 6,449.91

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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.