Home / 20,557.18-30,838.98-8,710.98

Finding the Fourth Proportional to 20,557.18, 30,838.98 and 8,710.98

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Solution

The fourth proportional to 20,557.18, 30,838.98 and 8,710.98 is: 13,067.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,557.18 : 30,838.98 = 8,710.98 : x
  2. Step 2: Convert to fraction form
    20,557.18/30,838.98 = 8,710.98/x
  3. Step 3: Cross multiply
    20,557.18x = 30,838.98 × 8,710.98
  4. Step 4: Simplify right side
    20,557.18x = 268,637,606.02
  5. Step 5: Solve for x
    x = 268,637,606.02/20,557.18
  6. Step 6: Final answer
    x = 13,067.83

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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.