Home / 20,111.55-30,159.60-9,573.45

Finding the Fourth Proportional to 20,111.55, 30,159.60 and 9,573.45

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Solution

The fourth proportional to 20,111.55, 30,159.60 and 9,573.45 is: 14,356.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111.55 : 30,159.60 = 9,573.45 : x
  2. Step 2: Convert to fraction form
    20,111.55/30,159.60 = 9,573.45/x
  3. Step 3: Cross multiply
    20,111.55x = 30,159.60 × 9,573.45
  4. Step 4: Simplify right side
    20,111.55x = 288,731,422.62
  5. Step 5: Solve for x
    x = 288,731,422.62/20,111.55
  6. Step 6: Final answer
    x = 14,356.50

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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.