Home / 29,316.02-40,456.14-15,887.16

Finding the Fourth Proportional to 29,316.02, 40,456.14 and 15,887.16

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Solution

The fourth proportional to 29,316.02, 40,456.14 and 15,887.16 is: 21,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,316.02 : 40,456.14 = 15,887.16 : x
  2. Step 2: Convert to fraction form
    29,316.02/40,456.14 = 15,887.16/x
  3. Step 3: Cross multiply
    29,316.02x = 40,456.14 × 15,887.16
  4. Step 4: Simplify right side
    29,316.02x = 642,733,169.16
  5. Step 5: Solve for x
    x = 642,733,169.16/29,316.02
  6. Step 6: Final answer
    x = 21,924.30

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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.