Home / 34,586.84-47,730.80-21,157.85

Finding the Fourth Proportional to 34,586.84, 47,730.80 and 21,157.85

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Solution

The fourth proportional to 34,586.84, 47,730.80 and 21,157.85 is: 29,198.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,586.84 : 47,730.80 = 21,157.85 : x
  2. Step 2: Convert to fraction form
    34,586.84/47,730.80 = 21,157.85/x
  3. Step 3: Cross multiply
    34,586.84x = 47,730.80 × 21,157.85
  4. Step 4: Simplify right side
    34,586.84x = 1,009,881,279.00
  5. Step 5: Solve for x
    x = 1,009,881,279.00/34,586.84
  6. Step 6: Final answer
    x = 29,198.42

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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.