Home / 47,539.96-71,307.06-12,478.84

Finding the Fourth Proportional to 47,539.96, 71,307.06 and 12,478.84

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Solution

The fourth proportional to 47,539.96, 71,307.06 and 12,478.84 is: 18,717.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,539.96 : 71,307.06 = 12,478.84 : x
  2. Step 2: Convert to fraction form
    47,539.96/71,307.06 = 12,478.84/x
  3. Step 3: Cross multiply
    47,539.96x = 71,307.06 × 12,478.84
  4. Step 4: Simplify right side
    47,539.96x = 889,829,392.61
  5. Step 5: Solve for x
    x = 889,829,392.61/47,539.96
  6. Step 6: Final answer
    x = 18,717.50

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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.