Home / 39,898.23-55,059.19-21,748.95

Finding the Fourth Proportional to 39,898.23, 55,059.19 and 21,748.95

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Solution

The fourth proportional to 39,898.23, 55,059.19 and 21,748.95 is: 30,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,898.23 : 55,059.19 = 21,748.95 : x
  2. Step 2: Convert to fraction form
    39,898.23/55,059.19 = 21,748.95/x
  3. Step 3: Cross multiply
    39,898.23x = 55,059.19 × 21,748.95
  4. Step 4: Simplify right side
    39,898.23x = 1,197,479,570.35
  5. Step 5: Solve for x
    x = 1,197,479,570.35/39,898.23
  6. Step 6: Final answer
    x = 30,013.35

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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.