Home / 19,005.40-28,511.16-5,857.77

Finding the Fourth Proportional to 19,005.40, 28,511.16 and 5,857.77

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Solution

The fourth proportional to 19,005.40, 28,511.16 and 5,857.77 is: 8,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.40 : 28,511.16 = 5,857.77 : x
  2. Step 2: Convert to fraction form
    19,005.40/28,511.16 = 5,857.77/x
  3. Step 3: Cross multiply
    19,005.40x = 28,511.16 × 5,857.77
  4. Step 4: Simplify right side
    19,005.40x = 167,011,675.16
  5. Step 5: Solve for x
    x = 167,011,675.16/19,005.40
  6. Step 6: Final answer
    x = 8,787.59

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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.