Home / 39,878.54-55,031.95-22,650.79

Finding the Fourth Proportional to 39,878.54, 55,031.95 and 22,650.79

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Solution

The fourth proportional to 39,878.54, 55,031.95 and 22,650.79 is: 31,257.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,878.54 : 55,031.95 = 22,650.79 : x
  2. Step 2: Convert to fraction form
    39,878.54/55,031.95 = 22,650.79/x
  3. Step 3: Cross multiply
    39,878.54x = 55,031.95 × 22,650.79
  4. Step 4: Simplify right side
    39,878.54x = 1,246,516,948.53
  5. Step 5: Solve for x
    x = 1,246,516,948.53/39,878.54
  6. Step 6: Final answer
    x = 31,257.84

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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.