Home / 42,193.88-63,290.20-12,611.06

Finding the Fourth Proportional to 42,193.88, 63,290.20 and 12,611.06

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Solution

The fourth proportional to 42,193.88, 63,290.20 and 12,611.06 is: 18,916.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,193.88 : 63,290.20 = 12,611.06 : x
  2. Step 2: Convert to fraction form
    42,193.88/63,290.20 = 12,611.06/x
  3. Step 3: Cross multiply
    42,193.88x = 63,290.20 × 12,611.06
  4. Step 4: Simplify right side
    42,193.88x = 798,156,509.61
  5. Step 5: Solve for x
    x = 798,156,509.61/42,193.88
  6. Step 6: Final answer
    x = 18,916.40

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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.