Home / 38,140.97-52,637.63-21,150.53

Finding the Fourth Proportional to 38,140.97, 52,637.63 and 21,150.53

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Solution

The fourth proportional to 38,140.97, 52,637.63 and 21,150.53 is: 29,189.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,140.97 : 52,637.63 = 21,150.53 : x
  2. Step 2: Convert to fraction form
    38,140.97/52,637.63 = 21,150.53/x
  3. Step 3: Cross multiply
    38,140.97x = 52,637.63 × 21,150.53
  4. Step 4: Simplify right side
    38,140.97x = 1,113,313,956.91
  5. Step 5: Solve for x
    x = 1,113,313,956.91/38,140.97
  6. Step 6: Final answer
    x = 29,189.45

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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.