Home / 21,439.60-29,586.58-12,364.93

Finding the Fourth Proportional to 21,439.60, 29,586.58 and 12,364.93

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Solution

The fourth proportional to 21,439.60, 29,586.58 and 12,364.93 is: 17,063.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.60 : 29,586.58 = 12,364.93 : x
  2. Step 2: Convert to fraction form
    21,439.60/29,586.58 = 12,364.93/x
  3. Step 3: Cross multiply
    21,439.60x = 29,586.58 × 12,364.93
  4. Step 4: Simplify right side
    21,439.60x = 365,835,990.64
  5. Step 5: Solve for x
    x = 365,835,990.64/21,439.60
  6. Step 6: Final answer
    x = 17,063.56

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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.