Home / 29,316.09-40,456.05-15,887.00

Finding the Fourth Proportional to 29,316.09, 40,456.05 and 15,887.00

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Solution

The fourth proportional to 29,316.09, 40,456.05 and 15,887.00 is: 21,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,316.09 : 40,456.05 = 15,887.00 : x
  2. Step 2: Convert to fraction form
    29,316.09/40,456.05 = 15,887.00/x
  3. Step 3: Cross multiply
    29,316.09x = 40,456.05 × 15,887.00
  4. Step 4: Simplify right side
    29,316.09x = 642,725,064.07
  5. Step 5: Solve for x
    x = 642,725,064.07/29,316.09
  6. Step 6: Final answer
    x = 21,923.97

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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.