Home / 38,422.53-53,023.32-21,427.85

Finding the Fourth Proportional to 38,422.53, 53,023.32 and 21,427.85

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Solution

The fourth proportional to 38,422.53, 53,023.32 and 21,427.85 is: 29,570.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,422.53 : 53,023.32 = 21,427.85 : x
  2. Step 2: Convert to fraction form
    38,422.53/53,023.32 = 21,427.85/x
  3. Step 3: Cross multiply
    38,422.53x = 53,023.32 × 21,427.85
  4. Step 4: Simplify right side
    38,422.53x = 1,136,175,482.35
  5. Step 5: Solve for x
    x = 1,136,175,482.35/38,422.53
  6. Step 6: Final answer
    x = 29,570.55

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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.