Home / 42,242.33-63,365.61-12,657.35

Finding the Fourth Proportional to 42,242.33, 63,365.61 and 12,657.35

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Solution

The fourth proportional to 42,242.33, 63,365.61 and 12,657.35 is: 18,986.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,242.33 : 63,365.61 = 12,657.35 : x
  2. Step 2: Convert to fraction form
    42,242.33/63,365.61 = 12,657.35/x
  3. Step 3: Cross multiply
    42,242.33x = 63,365.61 × 12,657.35
  4. Step 4: Simplify right side
    42,242.33x = 802,040,703.73
  5. Step 5: Solve for x
    x = 802,040,703.73/42,242.33
  6. Step 6: Final answer
    x = 18,986.66

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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.