Home / 19,740.88-29,611.32-9,870.22

Finding the Fourth Proportional to 19,740.88, 29,611.32 and 9,870.22

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Solution

The fourth proportional to 19,740.88, 29,611.32 and 9,870.22 is: 14,805.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.88 : 29,611.32 = 9,870.22 : x
  2. Step 2: Convert to fraction form
    19,740.88/29,611.32 = 9,870.22/x
  3. Step 3: Cross multiply
    19,740.88x = 29,611.32 × 9,870.22
  4. Step 4: Simplify right side
    19,740.88x = 292,270,242.89
  5. Step 5: Solve for x
    x = 292,270,242.89/19,740.88
  6. Step 6: Final answer
    x = 14,805.33

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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.