Home / 20,522.56-28,308-14,232.64

Finding the Fourth Proportional to 20,522.56, 28,308 and 14,232.64

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Solution

The fourth proportional to 20,522.56, 28,308 and 14,232.64 is: 19,631.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.56 : 28,308 = 14,232.64 : x
  2. Step 2: Convert to fraction form
    20,522.56/28,308 = 14,232.64/x
  3. Step 3: Cross multiply
    20,522.56x = 28,308 × 14,232.64
  4. Step 4: Simplify right side
    20,522.56x = 402,897,573.12
  5. Step 5: Solve for x
    x = 402,897,573.12/20,522.56
  6. Step 6: Final answer
    x = 19,631.94

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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.