Home / 38,933.42-53,717.00-21,931.70

Finding the Fourth Proportional to 38,933.42, 53,717.00 and 21,931.70

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Solution

The fourth proportional to 38,933.42, 53,717.00 and 21,931.70 is: 30,259.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,933.42 : 53,717.00 = 21,931.70 : x
  2. Step 2: Convert to fraction form
    38,933.42/53,717.00 = 21,931.70/x
  3. Step 3: Cross multiply
    38,933.42x = 53,717.00 × 21,931.70
  4. Step 4: Simplify right side
    38,933.42x = 1,178,104,750.66
  5. Step 5: Solve for x
    x = 1,178,104,750.66/38,933.42
  6. Step 6: Final answer
    x = 30,259.48

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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.