Home / 39,059.70-53,901.75-21,154.55

Finding the Fourth Proportional to 39,059.70, 53,901.75 and 21,154.55

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Solution

The fourth proportional to 39,059.70, 53,901.75 and 21,154.55 is: 29,192.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,059.70 : 53,901.75 = 21,154.55 : x
  2. Step 2: Convert to fraction form
    39,059.70/53,901.75 = 21,154.55/x
  3. Step 3: Cross multiply
    39,059.70x = 53,901.75 × 21,154.55
  4. Step 4: Simplify right side
    39,059.70x = 1,140,266,995.95
  5. Step 5: Solve for x
    x = 1,140,266,995.95/39,059.70
  6. Step 6: Final answer
    x = 29,192.93

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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.