Home / 42,550.18-63,834.75-12,970.32

Finding the Fourth Proportional to 42,550.18, 63,834.75 and 12,970.32

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Solution

The fourth proportional to 42,550.18, 63,834.75 and 12,970.32 is: 19,458.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,550.18 : 63,834.75 = 12,970.32 : x
  2. Step 2: Convert to fraction form
    42,550.18/63,834.75 = 12,970.32/x
  3. Step 3: Cross multiply
    42,550.18x = 63,834.75 × 12,970.32
  4. Step 4: Simplify right side
    42,550.18x = 827,957,134.62
  5. Step 5: Solve for x
    x = 827,957,134.62/42,550.18
  6. Step 6: Final answer
    x = 19,458.37

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1.5x scale

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.