Home / 42,492.75-63,740.48-12,910.85

Finding the Fourth Proportional to 42,492.75, 63,740.48 and 12,910.85

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Solution

The fourth proportional to 42,492.75, 63,740.48 and 12,910.85 is: 19,366.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,492.75 : 63,740.48 = 12,910.85 : x
  2. Step 2: Convert to fraction form
    42,492.75/63,740.48 = 12,910.85/x
  3. Step 3: Cross multiply
    42,492.75x = 63,740.48 × 12,910.85
  4. Step 4: Simplify right side
    42,492.75x = 822,943,392.95
  5. Step 5: Solve for x
    x = 822,943,392.95/42,492.75
  6. Step 6: Final answer
    x = 19,366.68

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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.