Home / 29,240.48-40,351.77-15,811.68

Finding the Fourth Proportional to 29,240.48, 40,351.77 and 15,811.68

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Solution

The fourth proportional to 29,240.48, 40,351.77 and 15,811.68 is: 21,820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,240.48 : 40,351.77 = 15,811.68 : x
  2. Step 2: Convert to fraction form
    29,240.48/40,351.77 = 15,811.68/x
  3. Step 3: Cross multiply
    29,240.48x = 40,351.77 × 15,811.68
  4. Step 4: Simplify right side
    29,240.48x = 638,029,274.67
  5. Step 5: Solve for x
    x = 638,029,274.67/29,240.48
  6. Step 6: Final answer
    x = 21,820.07

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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.