Home / 38,782.28-53,519.60-22,015.28

Finding the Fourth Proportional to 38,782.28, 53,519.60 and 22,015.28

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Solution

The fourth proportional to 38,782.28, 53,519.60 and 22,015.28 is: 30,381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,782.28 : 53,519.60 = 22,015.28 : x
  2. Step 2: Convert to fraction form
    38,782.28/53,519.60 = 22,015.28/x
  3. Step 3: Cross multiply
    38,782.28x = 53,519.60 × 22,015.28
  4. Step 4: Simplify right side
    38,782.28x = 1,178,248,979.49
  5. Step 5: Solve for x
    x = 1,178,248,979.49/38,782.28
  6. Step 6: Final answer
    x = 30,381.12

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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.