Home / 39,059.48-53,901.78-21,154.43

Finding the Fourth Proportional to 39,059.48, 53,901.78 and 21,154.43

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Solution

The fourth proportional to 39,059.48, 53,901.78 and 21,154.43 is: 29,192.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,059.48 : 53,901.78 = 21,154.43 : x
  2. Step 2: Convert to fraction form
    39,059.48/53,901.78 = 21,154.43/x
  3. Step 3: Cross multiply
    39,059.48x = 53,901.78 × 21,154.43
  4. Step 4: Simplify right side
    39,059.48x = 1,140,261,431.89
  5. Step 5: Solve for x
    x = 1,140,261,431.89/39,059.48
  6. Step 6: Final answer
    x = 29,192.95

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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.