Home / 38,671.96-53,368.38-21,904.60

Finding the Fourth Proportional to 38,671.96, 53,368.38 and 21,904.60

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Solution

The fourth proportional to 38,671.96, 53,368.38 and 21,904.60 is: 30,228.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,671.96 : 53,368.38 = 21,904.60 : x
  2. Step 2: Convert to fraction form
    38,671.96/53,368.38 = 21,904.60/x
  3. Step 3: Cross multiply
    38,671.96x = 53,368.38 × 21,904.60
  4. Step 4: Simplify right side
    38,671.96x = 1,169,013,016.55
  5. Step 5: Solve for x
    x = 1,169,013,016.55/38,671.96
  6. Step 6: Final answer
    x = 30,228.96

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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.