Home / 38,690.66-53,395.88-21,468.68

Finding the Fourth Proportional to 38,690.66, 53,395.88 and 21,468.68

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Solution

The fourth proportional to 38,690.66, 53,395.88 and 21,468.68 is: 29,628.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,690.66 : 53,395.88 = 21,468.68 : x
  2. Step 2: Convert to fraction form
    38,690.66/53,395.88 = 21,468.68/x
  3. Step 3: Cross multiply
    38,690.66x = 53,395.88 × 21,468.68
  4. Step 4: Simplify right side
    38,690.66x = 1,146,338,886.95
  5. Step 5: Solve for x
    x = 1,146,338,886.95/38,690.66
  6. Step 6: Final answer
    x = 29,628.31

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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.