Home / 42,368.84-63,553.68-12,786.92

Finding the Fourth Proportional to 42,368.84, 63,553.68 and 12,786.92

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Solution

The fourth proportional to 42,368.84, 63,553.68 and 12,786.92 is: 19,180.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,368.84 : 63,553.68 = 12,786.92 : x
  2. Step 2: Convert to fraction form
    42,368.84/63,553.68 = 12,786.92/x
  3. Step 3: Cross multiply
    42,368.84x = 63,553.68 × 12,786.92
  4. Step 4: Simplify right side
    42,368.84x = 812,655,504.10
  5. Step 5: Solve for x
    x = 812,655,504.10/42,368.84
  6. Step 6: Final answer
    x = 19,180.50

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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.