Home / 39,130.08-53,998.02-21,224.46

Finding the Fourth Proportional to 39,130.08, 53,998.02 and 21,224.46

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Solution

The fourth proportional to 39,130.08, 53,998.02 and 21,224.46 is: 29,288.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,130.08 : 53,998.02 = 21,224.46 : x
  2. Step 2: Convert to fraction form
    39,130.08/53,998.02 = 21,224.46/x
  3. Step 3: Cross multiply
    39,130.08x = 53,998.02 × 21,224.46
  4. Step 4: Simplify right side
    39,130.08x = 1,146,078,815.57
  5. Step 5: Solve for x
    x = 1,146,078,815.57/39,130.08
  6. Step 6: Final answer
    x = 29,288.95

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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.