Home / 37,989.64-56,979.16-9,907.40

Finding the Fourth Proportional to 37,989.64, 56,979.16 and 9,907.40

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Solution

The fourth proportional to 37,989.64, 56,979.16 and 9,907.40 is: 14,859.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,989.64 : 56,979.16 = 9,907.40 : x
  2. Step 2: Convert to fraction form
    37,989.64/56,979.16 = 9,907.40/x
  3. Step 3: Cross multiply
    37,989.64x = 56,979.16 × 9,907.40
  4. Step 4: Simplify right side
    37,989.64x = 564,515,329.78
  5. Step 5: Solve for x
    x = 564,515,329.78/37,989.64
  6. Step 6: Final answer
    x = 14,859.72

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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.