Home / 47,920.40-71,884.32-16,320.72

Finding the Fourth Proportional to 47,920.40, 71,884.32 and 16,320.72

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Solution

The fourth proportional to 47,920.40, 71,884.32 and 16,320.72 is: 24,482.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,920.40 : 71,884.32 = 16,320.72 : x
  2. Step 2: Convert to fraction form
    47,920.40/71,884.32 = 16,320.72/x
  3. Step 3: Cross multiply
    47,920.40x = 71,884.32 × 16,320.72
  4. Step 4: Simplify right side
    47,920.40x = 1,173,203,859.11
  5. Step 5: Solve for x
    x = 1,173,203,859.11/47,920.40
  6. Step 6: Final answer
    x = 24,482.35

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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.