Home / 15,979.21-23,970.56-4,293.34

Finding the Fourth Proportional to 15,979.21, 23,970.56 and 4,293.34

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Solution

The fourth proportional to 15,979.21, 23,970.56 and 4,293.34 is: 6,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979.21 : 23,970.56 = 4,293.34 : x
  2. Step 2: Convert to fraction form
    15,979.21/23,970.56 = 4,293.34/x
  3. Step 3: Cross multiply
    15,979.21x = 23,970.56 × 4,293.34
  4. Step 4: Simplify right side
    15,979.21x = 102,913,764.07
  5. Step 5: Solve for x
    x = 102,913,764.07/15,979.21
  6. Step 6: Final answer
    x = 6,440.48

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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.