Home / 16,678.40-23,031.50-10,720.44

Finding the Fourth Proportional to 16,678.40, 23,031.50 and 10,720.44

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Solution

The fourth proportional to 16,678.40, 23,031.50 and 10,720.44 is: 14,804.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,678.40 : 23,031.50 = 10,720.44 : x
  2. Step 2: Convert to fraction form
    16,678.40/23,031.50 = 10,720.44/x
  3. Step 3: Cross multiply
    16,678.40x = 23,031.50 × 10,720.44
  4. Step 4: Simplify right side
    16,678.40x = 246,907,760.26
  5. Step 5: Solve for x
    x = 246,907,760.26/16,678.40
  6. Step 6: Final answer
    x = 14,804.05

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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.