Home / 38,947.59-53,746.11-21,955.37

Finding the Fourth Proportional to 38,947.59, 53,746.11 and 21,955.37

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Solution

The fourth proportional to 38,947.59, 53,746.11 and 21,955.37 is: 30,297.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,947.59 : 53,746.11 = 21,955.37 : x
  2. Step 2: Convert to fraction form
    38,947.59/53,746.11 = 21,955.37/x
  3. Step 3: Cross multiply
    38,947.59x = 53,746.11 × 21,955.37
  4. Step 4: Simplify right side
    38,947.59x = 1,180,015,462.38
  5. Step 5: Solve for x
    x = 1,180,015,462.38/38,947.59
  6. Step 6: Final answer
    x = 30,297.52

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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.