Home / 19,267.30-28,879.35-9,903.70

Finding the Fourth Proportional to 19,267.30, 28,879.35 and 9,903.70

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Solution

The fourth proportional to 19,267.30, 28,879.35 and 9,903.70 is: 14,844.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,267.30 : 28,879.35 = 9,903.70 : x
  2. Step 2: Convert to fraction form
    19,267.30/28,879.35 = 9,903.70/x
  3. Step 3: Cross multiply
    19,267.30x = 28,879.35 × 9,903.70
  4. Step 4: Simplify right side
    19,267.30x = 286,012,418.60
  5. Step 5: Solve for x
    x = 286,012,418.60/19,267.30
  6. Step 6: Final answer
    x = 14,844.45

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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.