Home / 19,612.48-29,431.23-7,131.31

Finding the Fourth Proportional to 19,612.48, 29,431.23 and 7,131.31

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Solution

The fourth proportional to 19,612.48, 29,431.23 and 7,131.31 is: 10,701.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,612.48 : 29,431.23 = 7,131.31 : x
  2. Step 2: Convert to fraction form
    19,612.48/29,431.23 = 7,131.31/x
  3. Step 3: Cross multiply
    19,612.48x = 29,431.23 × 7,131.31
  4. Step 4: Simplify right side
    19,612.48x = 209,883,224.81
  5. Step 5: Solve for x
    x = 209,883,224.81/19,612.48
  6. Step 6: Final answer
    x = 10,701.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.