Home / 39,011.96-53,836.47-22,019.78

Finding the Fourth Proportional to 39,011.96, 53,836.47 and 22,019.78

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Solution

The fourth proportional to 39,011.96, 53,836.47 and 22,019.78 is: 30,387.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,011.96 : 53,836.47 = 22,019.78 : x
  2. Step 2: Convert to fraction form
    39,011.96/53,836.47 = 22,019.78/x
  3. Step 3: Cross multiply
    39,011.96x = 53,836.47 × 22,019.78
  4. Step 4: Simplify right side
    39,011.96x = 1,185,466,956.19
  5. Step 5: Solve for x
    x = 1,185,466,956.19/39,011.96
  6. Step 6: Final answer
    x = 30,387.27

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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.