Home / 39,293.48-54,225.78-30,805.76

Finding the Fourth Proportional to 39,293.48, 54,225.78 and 30,805.76

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Solution

The fourth proportional to 39,293.48, 54,225.78 and 30,805.76 is: 42,512.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,293.48 : 54,225.78 = 30,805.76 : x
  2. Step 2: Convert to fraction form
    39,293.48/54,225.78 = 30,805.76/x
  3. Step 3: Cross multiply
    39,293.48x = 54,225.78 × 30,805.76
  4. Step 4: Simplify right side
    39,293.48x = 1,670,466,364.49
  5. Step 5: Solve for x
    x = 1,670,466,364.49/39,293.48
  6. Step 6: Final answer
    x = 42,512.56

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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.