Home / 39,784.23-54,905.99-22,785.10

Finding the Fourth Proportional to 39,784.23, 54,905.99 and 22,785.10

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Solution

The fourth proportional to 39,784.23, 54,905.99 and 22,785.10 is: 31,445.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,784.23 : 54,905.99 = 22,785.10 : x
  2. Step 2: Convert to fraction form
    39,784.23/54,905.99 = 22,785.10/x
  3. Step 3: Cross multiply
    39,784.23x = 54,905.99 × 22,785.10
  4. Step 4: Simplify right side
    39,784.23x = 1,251,038,221.56
  5. Step 5: Solve for x
    x = 1,251,038,221.56/39,784.23
  6. Step 6: Final answer
    x = 31,445.58

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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.