Home / 39,852.02-54,995.12-21,948.69

Finding the Fourth Proportional to 39,852.02, 54,995.12 and 21,948.69

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Solution

The fourth proportional to 39,852.02, 54,995.12 and 21,948.69 is: 30,288.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,852.02 : 54,995.12 = 21,948.69 : x
  2. Step 2: Convert to fraction form
    39,852.02/54,995.12 = 21,948.69/x
  3. Step 3: Cross multiply
    39,852.02x = 54,995.12 × 21,948.69
  4. Step 4: Simplify right side
    39,852.02x = 1,207,070,709.84
  5. Step 5: Solve for x
    x = 1,207,070,709.84/39,852.02
  6. Step 6: Final answer
    x = 30,288.82

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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.