Home / 38,628.14-53,302.42-21,630.02

Finding the Fourth Proportional to 38,628.14, 53,302.42 and 21,630.02

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Solution

The fourth proportional to 38,628.14, 53,302.42 and 21,630.02 is: 29,846.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,628.14 : 53,302.42 = 21,630.02 : x
  2. Step 2: Convert to fraction form
    38,628.14/53,302.42 = 21,630.02/x
  3. Step 3: Cross multiply
    38,628.14x = 53,302.42 × 21,630.02
  4. Step 4: Simplify right side
    38,628.14x = 1,152,932,171.17
  5. Step 5: Solve for x
    x = 1,152,932,171.17/38,628.14
  6. Step 6: Final answer
    x = 29,846.95

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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.