Home / 21,050.94-31,575.06-7,902.18

Finding the Fourth Proportional to 21,050.94, 31,575.06 and 7,902.18

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Solution

The fourth proportional to 21,050.94, 31,575.06 and 7,902.18 is: 11,852.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,050.94 : 31,575.06 = 7,902.18 : x
  2. Step 2: Convert to fraction form
    21,050.94/31,575.06 = 7,902.18/x
  3. Step 3: Cross multiply
    21,050.94x = 31,575.06 × 7,902.18
  4. Step 4: Simplify right side
    21,050.94x = 249,511,807.63
  5. Step 5: Solve for x
    x = 249,511,807.63/21,050.94
  6. Step 6: Final answer
    x = 11,852.76

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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.