Home / 48,423.64-72,639.14-18,828.76

Finding the Fourth Proportional to 48,423.64, 72,639.14 and 18,828.76

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Solution

The fourth proportional to 48,423.64, 72,639.14 and 18,828.76 is: 28,244.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,423.64 : 72,639.14 = 18,828.76 : x
  2. Step 2: Convert to fraction form
    48,423.64/72,639.14 = 18,828.76/x
  3. Step 3: Cross multiply
    48,423.64x = 72,639.14 × 18,828.76
  4. Step 4: Simplify right side
    48,423.64x = 1,367,704,933.67
  5. Step 5: Solve for x
    x = 1,367,704,933.67/48,423.64
  6. Step 6: Final answer
    x = 28,244.57

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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.