Home / 20,541.44-28,334.40-12,152

Finding the Fourth Proportional to 20,541.44, 28,334.40 and 12,152

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Solution

The fourth proportional to 20,541.44, 28,334.40 and 12,152 is: 16,762.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541.44 : 28,334.40 = 12,152 : x
  2. Step 2: Convert to fraction form
    20,541.44/28,334.40 = 12,152/x
  3. Step 3: Cross multiply
    20,541.44x = 28,334.40 × 12,152
  4. Step 4: Simplify right side
    20,541.44x = 344,319,628.80
  5. Step 5: Solve for x
    x = 344,319,628.80/20,541.44
  6. Step 6: Final answer
    x = 16,762.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.