Home / 38,943.42-53,742.14-21,947.94

Finding the Fourth Proportional to 38,943.42, 53,742.14 and 21,947.94

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Solution

The fourth proportional to 38,943.42, 53,742.14 and 21,947.94 is: 30,288.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,943.42 : 53,742.14 = 21,947.94 : x
  2. Step 2: Convert to fraction form
    38,943.42/53,742.14 = 21,947.94/x
  3. Step 3: Cross multiply
    38,943.42x = 53,742.14 × 21,947.94
  4. Step 4: Simplify right side
    38,943.42x = 1,179,529,264.19
  5. Step 5: Solve for x
    x = 1,179,529,264.19/38,943.42
  6. Step 6: Final answer
    x = 30,288.28

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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.