Home / 16,887.81-25,386.40-15,670.38

Finding the Fourth Proportional to 16,887.81, 25,386.40 and 15,670.38

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Solution

The fourth proportional to 16,887.81, 25,386.40 and 15,670.38 is: 23,556.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,887.81 : 25,386.40 = 15,670.38 : x
  2. Step 2: Convert to fraction form
    16,887.81/25,386.40 = 15,670.38/x
  3. Step 3: Cross multiply
    16,887.81x = 25,386.40 × 15,670.38
  4. Step 4: Simplify right side
    16,887.81x = 397,814,534.83
  5. Step 5: Solve for x
    x = 397,814,534.83/16,887.81
  6. Step 6: Final answer
    x = 23,556.31

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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.