Home / 42,611.96-63,915.52-13,029.76

Finding the Fourth Proportional to 42,611.96, 63,915.52 and 13,029.76

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Solution

The fourth proportional to 42,611.96, 63,915.52 and 13,029.76 is: 19,543.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,611.96 : 63,915.52 = 13,029.76 : x
  2. Step 2: Convert to fraction form
    42,611.96/63,915.52 = 13,029.76/x
  3. Step 3: Cross multiply
    42,611.96x = 63,915.52 × 13,029.76
  4. Step 4: Simplify right side
    42,611.96x = 832,803,885.88
  5. Step 5: Solve for x
    x = 832,803,885.88/42,611.96
  6. Step 6: Final answer
    x = 19,543.90

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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.