Home / 38,621.40-53,297.82-21,854.04

Finding the Fourth Proportional to 38,621.40, 53,297.82 and 21,854.04

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Solution

The fourth proportional to 38,621.40, 53,297.82 and 21,854.04 is: 30,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,621.40 : 53,297.82 = 21,854.04 : x
  2. Step 2: Convert to fraction form
    38,621.40/53,297.82 = 21,854.04/x
  3. Step 3: Cross multiply
    38,621.40x = 53,297.82 × 21,854.04
  4. Step 4: Simplify right side
    38,621.40x = 1,164,772,690.19
  5. Step 5: Solve for x
    x = 1,164,772,690.19/38,621.40
  6. Step 6: Final answer
    x = 30,158.74

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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.