Home / 39,137.50-54,009.91-21,232.63

Finding the Fourth Proportional to 39,137.50, 54,009.91 and 21,232.63

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Solution

The fourth proportional to 39,137.50, 54,009.91 and 21,232.63 is: 29,301.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,137.50 : 54,009.91 = 21,232.63 : x
  2. Step 2: Convert to fraction form
    39,137.50/54,009.91 = 21,232.63/x
  3. Step 3: Cross multiply
    39,137.50x = 54,009.91 × 21,232.63
  4. Step 4: Simplify right side
    39,137.50x = 1,146,772,409.98
  5. Step 5: Solve for x
    x = 1,146,772,409.98/39,137.50
  6. Step 6: Final answer
    x = 29,301.12

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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.