Home / 39,405.84-54,380.25-21,501.24

Finding the Fourth Proportional to 39,405.84, 54,380.25 and 21,501.24

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Solution

The fourth proportional to 39,405.84, 54,380.25 and 21,501.24 is: 29,671.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,405.84 : 54,380.25 = 21,501.24 : x
  2. Step 2: Convert to fraction form
    39,405.84/54,380.25 = 21,501.24/x
  3. Step 3: Cross multiply
    39,405.84x = 54,380.25 × 21,501.24
  4. Step 4: Simplify right side
    39,405.84x = 1,169,242,806.51
  5. Step 5: Solve for x
    x = 1,169,242,806.51/39,405.84
  6. Step 6: Final answer
    x = 29,671.82

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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.