Home / 29,310.13-40,415.27-21,227.80

Finding the Fourth Proportional to 29,310.13, 40,415.27 and 21,227.80

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Solution

The fourth proportional to 29,310.13, 40,415.27 and 21,227.80 is: 29,270.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,310.13 : 40,415.27 = 21,227.80 : x
  2. Step 2: Convert to fraction form
    29,310.13/40,415.27 = 21,227.80/x
  3. Step 3: Cross multiply
    29,310.13x = 40,415.27 × 21,227.80
  4. Step 4: Simplify right side
    29,310.13x = 857,927,268.51
  5. Step 5: Solve for x
    x = 857,927,268.51/29,310.13
  6. Step 6: Final answer
    x = 29,270.67

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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.