Home / 29,301.09-40,435.59-15,872.31

Finding the Fourth Proportional to 29,301.09, 40,435.59 and 15,872.31

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Solution

The fourth proportional to 29,301.09, 40,435.59 and 15,872.31 is: 21,903.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,301.09 : 40,435.59 = 15,872.31 : x
  2. Step 2: Convert to fraction form
    29,301.09/40,435.59 = 15,872.31/x
  3. Step 3: Cross multiply
    29,301.09x = 40,435.59 × 15,872.31
  4. Step 4: Simplify right side
    29,301.09x = 641,806,219.51
  5. Step 5: Solve for x
    x = 641,806,219.51/29,301.09
  6. Step 6: Final answer
    x = 21,903.83

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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.