Home / 30,813.03-42,521.99-16,665.87

Finding the Fourth Proportional to 30,813.03, 42,521.99 and 16,665.87

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Solution

The fourth proportional to 30,813.03, 42,521.99 and 16,665.87 is: 22,998.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,813.03 : 42,521.99 = 16,665.87 : x
  2. Step 2: Convert to fraction form
    30,813.03/42,521.99 = 16,665.87/x
  3. Step 3: Cross multiply
    30,813.03x = 42,521.99 × 16,665.87
  4. Step 4: Simplify right side
    30,813.03x = 708,666,033.61
  5. Step 5: Solve for x
    x = 708,666,033.61/30,813.03
  6. Step 6: Final answer
    x = 22,998.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.