Home / 38,630.71-53,311.56-21,634.91

Finding the Fourth Proportional to 38,630.71, 53,311.56 and 21,634.91

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Solution

The fourth proportional to 38,630.71, 53,311.56 and 21,634.91 is: 29,856.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,630.71 : 53,311.56 = 21,634.91 : x
  2. Step 2: Convert to fraction form
    38,630.71/53,311.56 = 21,634.91/x
  3. Step 3: Cross multiply
    38,630.71x = 53,311.56 × 21,634.91
  4. Step 4: Simplify right side
    38,630.71x = 1,153,390,802.56
  5. Step 5: Solve for x
    x = 1,153,390,802.56/38,630.71
  6. Step 6: Final answer
    x = 29,856.84

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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.