Home / 42,270.68-63,396.84-12,680.58

Finding the Fourth Proportional to 42,270.68, 63,396.84 and 12,680.58

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Solution

The fourth proportional to 42,270.68, 63,396.84 and 12,680.58 is: 19,018.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,270.68 : 63,396.84 = 12,680.58 : x
  2. Step 2: Convert to fraction form
    42,270.68/63,396.84 = 12,680.58/x
  3. Step 3: Cross multiply
    42,270.68x = 63,396.84 × 12,680.58
  4. Step 4: Simplify right side
    42,270.68x = 803,908,701.37
  5. Step 5: Solve for x
    x = 803,908,701.37/42,270.68
  6. Step 6: Final answer
    x = 19,018.12

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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.