Home / 38,335.40-52,902.84-21,339.28

Finding the Fourth Proportional to 38,335.40, 52,902.84 and 21,339.28

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Solution

The fourth proportional to 38,335.40, 52,902.84 and 21,339.28 is: 29,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,335.40 : 52,902.84 = 21,339.28 : x
  2. Step 2: Convert to fraction form
    38,335.40/52,902.84 = 21,339.28/x
  3. Step 3: Cross multiply
    38,335.40x = 52,902.84 × 21,339.28
  4. Step 4: Simplify right side
    38,335.40x = 1,128,908,515.56
  5. Step 5: Solve for x
    x = 1,128,908,515.56/38,335.40
  6. Step 6: Final answer
    x = 29,448.20

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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.