Home / 19,290.80-28,913.06-9,935.24

Finding the Fourth Proportional to 19,290.80, 28,913.06 and 9,935.24

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Solution

The fourth proportional to 19,290.80, 28,913.06 and 9,935.24 is: 14,890.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.80 : 28,913.06 = 9,935.24 : x
  2. Step 2: Convert to fraction form
    19,290.80/28,913.06 = 9,935.24/x
  3. Step 3: Cross multiply
    19,290.80x = 28,913.06 × 9,935.24
  4. Step 4: Simplify right side
    19,290.80x = 287,257,995.99
  5. Step 5: Solve for x
    x = 287,257,995.99/19,290.80
  6. Step 6: Final answer
    x = 14,890.94

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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.