Home / 19,890.48-29,813.52-8,795.16

Finding the Fourth Proportional to 19,890.48, 29,813.52 and 8,795.16

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Solution

The fourth proportional to 19,890.48, 29,813.52 and 8,795.16 is: 13,182.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.48 : 29,813.52 = 8,795.16 : x
  2. Step 2: Convert to fraction form
    19,890.48/29,813.52 = 8,795.16/x
  3. Step 3: Cross multiply
    19,890.48x = 29,813.52 × 8,795.16
  4. Step 4: Simplify right side
    19,890.48x = 262,214,678.56
  5. Step 5: Solve for x
    x = 262,214,678.56/19,890.48
  6. Step 6: Final answer
    x = 13,182.92

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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.