Home / 28,689.21-43,007.90-10,216.89

Finding the Fourth Proportional to 28,689.21, 43,007.90 and 10,216.89

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Solution

The fourth proportional to 28,689.21, 43,007.90 and 10,216.89 is: 15,316.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689.21 : 43,007.90 = 10,216.89 : x
  2. Step 2: Convert to fraction form
    28,689.21/43,007.90 = 10,216.89/x
  3. Step 3: Cross multiply
    28,689.21x = 43,007.90 × 10,216.89
  4. Step 4: Simplify right side
    28,689.21x = 439,406,932.35
  5. Step 5: Solve for x
    x = 439,406,932.35/28,689.21
  6. Step 6: Final answer
    x = 15,316.10

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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.