Home / 39,901.02-55,059.03-23,130.78

Finding the Fourth Proportional to 39,901.02, 55,059.03 and 23,130.78

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Solution

The fourth proportional to 39,901.02, 55,059.03 and 23,130.78 is: 31,917.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,901.02 : 55,059.03 = 23,130.78 : x
  2. Step 2: Convert to fraction form
    39,901.02/55,059.03 = 23,130.78/x
  3. Step 3: Cross multiply
    39,901.02x = 55,059.03 × 23,130.78
  4. Step 4: Simplify right side
    39,901.02x = 1,273,558,309.94
  5. Step 5: Solve for x
    x = 1,273,558,309.94/39,901.02
  6. Step 6: Final answer
    x = 31,917.94

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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.