Home / 27,276.32-37,478.20-21,677.60

Finding the Fourth Proportional to 27,276.32, 37,478.20 and 21,677.60

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Solution

The fourth proportional to 27,276.32, 37,478.20 and 21,677.60 is: 29,785.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,276.32 : 37,478.20 = 21,677.60 : x
  2. Step 2: Convert to fraction form
    27,276.32/37,478.20 = 21,677.60/x
  3. Step 3: Cross multiply
    27,276.32x = 37,478.20 × 21,677.60
  4. Step 4: Simplify right side
    27,276.32x = 812,437,428.32
  5. Step 5: Solve for x
    x = 812,437,428.32/27,276.32
  6. Step 6: Final answer
    x = 29,785.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.