Home / 38,528.43-53,164.71-21,532.68

Finding the Fourth Proportional to 38,528.43, 53,164.71 and 21,532.68

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Solution

The fourth proportional to 38,528.43, 53,164.71 and 21,532.68 is: 29,712.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,528.43 : 53,164.71 = 21,532.68 : x
  2. Step 2: Convert to fraction form
    38,528.43/53,164.71 = 21,532.68/x
  3. Step 3: Cross multiply
    38,528.43x = 53,164.71 × 21,532.68
  4. Step 4: Simplify right side
    38,528.43x = 1,144,778,687.72
  5. Step 5: Solve for x
    x = 1,144,778,687.72/38,528.43
  6. Step 6: Final answer
    x = 29,712.57

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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.