Home / 28,646.87-42,967.10-8,923.77

Finding the Fourth Proportional to 28,646.87, 42,967.10 and 8,923.77

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Solution

The fourth proportional to 28,646.87, 42,967.10 and 8,923.77 is: 13,384.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,646.87 : 42,967.10 = 8,923.77 : x
  2. Step 2: Convert to fraction form
    28,646.87/42,967.10 = 8,923.77/x
  3. Step 3: Cross multiply
    28,646.87x = 42,967.10 × 8,923.77
  4. Step 4: Simplify right side
    28,646.87x = 383,428,473.35
  5. Step 5: Solve for x
    x = 383,428,473.35/28,646.87
  6. Step 6: Final answer
    x = 13,384.66

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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.