Home / 34,416.20-47,498.58-20,991.56

Finding the Fourth Proportional to 34,416.20, 47,498.58 and 20,991.56

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Solution

The fourth proportional to 34,416.20, 47,498.58 and 20,991.56 is: 28,970.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,416.20 : 47,498.58 = 20,991.56 : x
  2. Step 2: Convert to fraction form
    34,416.20/47,498.58 = 20,991.56/x
  3. Step 3: Cross multiply
    34,416.20x = 47,498.58 × 20,991.56
  4. Step 4: Simplify right side
    34,416.20x = 997,069,291.98
  5. Step 5: Solve for x
    x = 997,069,291.98/34,416.20
  6. Step 6: Final answer
    x = 28,970.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.