Home / 42,270.18-63,396.09-12,680.07

Finding the Fourth Proportional to 42,270.18, 63,396.09 and 12,680.07

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Solution

The fourth proportional to 42,270.18, 63,396.09 and 12,680.07 is: 19,017.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,270.18 : 63,396.09 = 12,680.07 : x
  2. Step 2: Convert to fraction form
    42,270.18/63,396.09 = 12,680.07/x
  3. Step 3: Cross multiply
    42,270.18x = 63,396.09 × 12,680.07
  4. Step 4: Simplify right side
    42,270.18x = 803,866,858.93
  5. Step 5: Solve for x
    x = 803,866,858.93/42,270.18
  6. Step 6: Final answer
    x = 19,017.35

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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.