Home / 42,565.85-63,855.79-12,976.77

Finding the Fourth Proportional to 42,565.85, 63,855.79 and 12,976.77

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Solution

The fourth proportional to 42,565.85, 63,855.79 and 12,976.77 is: 19,467.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,565.85 : 63,855.79 = 12,976.77 : x
  2. Step 2: Convert to fraction form
    42,565.85/63,855.79 = 12,976.77/x
  3. Step 3: Cross multiply
    42,565.85x = 63,855.79 × 12,976.77
  4. Step 4: Simplify right side
    42,565.85x = 828,641,828.50
  5. Step 5: Solve for x
    x = 828,641,828.50/42,565.85
  6. Step 6: Final answer
    x = 19,467.29

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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.