Home / 39,915.66-55,082.34-22,011

Finding the Fourth Proportional to 39,915.66, 55,082.34 and 22,011

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Solution

The fourth proportional to 39,915.66, 55,082.34 and 22,011 is: 30,374.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,915.66 : 55,082.34 = 22,011 : x
  2. Step 2: Convert to fraction form
    39,915.66/55,082.34 = 22,011/x
  3. Step 3: Cross multiply
    39,915.66x = 55,082.34 × 22,011
  4. Step 4: Simplify right side
    39,915.66x = 1,212,417,385.74
  5. Step 5: Solve for x
    x = 1,212,417,385.74/39,915.66
  6. Step 6: Final answer
    x = 30,374.48

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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.