Home / 39,832.71-54,969.48-21,929.01

Finding the Fourth Proportional to 39,832.71, 54,969.48 and 21,929.01

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Solution

The fourth proportional to 39,832.71, 54,969.48 and 21,929.01 is: 30,262.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,832.71 : 54,969.48 = 21,929.01 : x
  2. Step 2: Convert to fraction form
    39,832.71/54,969.48 = 21,929.01/x
  3. Step 3: Cross multiply
    39,832.71x = 54,969.48 × 21,929.01
  4. Step 4: Simplify right side
    39,832.71x = 1,205,426,276.61
  5. Step 5: Solve for x
    x = 1,205,426,276.61/39,832.71
  6. Step 6: Final answer
    x = 30,262.22

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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.