Home / 19,271.25-28,931.18-16,655.36

Finding the Fourth Proportional to 19,271.25, 28,931.18 and 16,655.36

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Solution

The fourth proportional to 19,271.25, 28,931.18 and 16,655.36 is: 25,004.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,271.25 : 28,931.18 = 16,655.36 : x
  2. Step 2: Convert to fraction form
    19,271.25/28,931.18 = 16,655.36/x
  3. Step 3: Cross multiply
    19,271.25x = 28,931.18 × 16,655.36
  4. Step 4: Simplify right side
    19,271.25x = 481,858,990.19
  5. Step 5: Solve for x
    x = 481,858,990.19/19,271.25
  6. Step 6: Final answer
    x = 25,004.03

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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.