Home / 38,506.68-53,133.97-21,508.76

Finding the Fourth Proportional to 38,506.68, 53,133.97 and 21,508.76

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Solution

The fourth proportional to 38,506.68, 53,133.97 and 21,508.76 is: 29,679.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,506.68 : 53,133.97 = 21,508.76 : x
  2. Step 2: Convert to fraction form
    38,506.68/53,133.97 = 21,508.76/x
  3. Step 3: Cross multiply
    38,506.68x = 53,133.97 × 21,508.76
  4. Step 4: Simplify right side
    38,506.68x = 1,142,845,808.58
  5. Step 5: Solve for x
    x = 1,142,845,808.58/38,506.68
  6. Step 6: Final answer
    x = 29,679.16

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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.