Home / 19,617.84-29,439.36-12,602.88

Finding the Fourth Proportional to 19,617.84, 29,439.36 and 12,602.88

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Solution

The fourth proportional to 19,617.84, 29,439.36 and 12,602.88 is: 18,912.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,617.84 : 29,439.36 = 12,602.88 : x
  2. Step 2: Convert to fraction form
    19,617.84/29,439.36 = 12,602.88/x
  3. Step 3: Cross multiply
    19,617.84x = 29,439.36 × 12,602.88
  4. Step 4: Simplify right side
    19,617.84x = 371,020,721.36
  5. Step 5: Solve for x
    x = 371,020,721.36/19,617.84
  6. Step 6: Final answer
    x = 18,912.41

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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.