Home / 39,113.84-53,976.24-21,208.39

Finding the Fourth Proportional to 39,113.84, 53,976.24 and 21,208.39

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Solution

The fourth proportional to 39,113.84, 53,976.24 and 21,208.39 is: 29,267.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,113.84 : 53,976.24 = 21,208.39 : x
  2. Step 2: Convert to fraction form
    39,113.84/53,976.24 = 21,208.39/x
  3. Step 3: Cross multiply
    39,113.84x = 53,976.24 × 21,208.39
  4. Step 4: Simplify right side
    39,113.84x = 1,144,749,013.71
  5. Step 5: Solve for x
    x = 1,144,749,013.71/39,113.84
  6. Step 6: Final answer
    x = 29,267.11

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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.