Home / 40,970.52-61,455.96-12,889.44

Finding the Fourth Proportional to 40,970.52, 61,455.96 and 12,889.44

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Solution

The fourth proportional to 40,970.52, 61,455.96 and 12,889.44 is: 19,334.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,970.52 : 61,455.96 = 12,889.44 : x
  2. Step 2: Convert to fraction form
    40,970.52/61,455.96 = 12,889.44/x
  3. Step 3: Cross multiply
    40,970.52x = 61,455.96 × 12,889.44
  4. Step 4: Simplify right side
    40,970.52x = 792,132,909.06
  5. Step 5: Solve for x
    x = 792,132,909.06/40,970.52
  6. Step 6: Final answer
    x = 19,334.22

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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.