Home / 20,264.31-30,396.47-8,577.63

Finding the Fourth Proportional to 20,264.31, 30,396.47 and 8,577.63

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Solution

The fourth proportional to 20,264.31, 30,396.47 and 8,577.63 is: 12,866.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.31 : 30,396.47 = 8,577.63 : x
  2. Step 2: Convert to fraction form
    20,264.31/30,396.47 = 8,577.63/x
  3. Step 3: Cross multiply
    20,264.31x = 30,396.47 × 8,577.63
  4. Step 4: Simplify right side
    20,264.31x = 260,729,630.08
  5. Step 5: Solve for x
    x = 260,729,630.08/20,264.31
  6. Step 6: Final answer
    x = 12,866.45

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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.