Home / 38,335.81-52,903.04-21,339.78

Finding the Fourth Proportional to 38,335.81, 52,903.04 and 21,339.78

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Solution

The fourth proportional to 38,335.81, 52,903.04 and 21,339.78 is: 29,448.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,335.81 : 52,903.04 = 21,339.78 : x
  2. Step 2: Convert to fraction form
    38,335.81/52,903.04 = 21,339.78/x
  3. Step 3: Cross multiply
    38,335.81x = 52,903.04 × 21,339.78
  4. Step 4: Simplify right side
    38,335.81x = 1,128,939,234.93
  5. Step 5: Solve for x
    x = 1,128,939,234.93/38,335.81
  6. Step 6: Final answer
    x = 29,448.69

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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.