Home / 19,730.92-27,230.55-10,779.77

Finding the Fourth Proportional to 19,730.92, 27,230.55 and 10,779.77

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Solution

The fourth proportional to 19,730.92, 27,230.55 and 10,779.77 is: 14,877.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,730.92 : 27,230.55 = 10,779.77 : x
  2. Step 2: Convert to fraction form
    19,730.92/27,230.55 = 10,779.77/x
  3. Step 3: Cross multiply
    19,730.92x = 27,230.55 × 10,779.77
  4. Step 4: Simplify right side
    19,730.92x = 293,538,944.00
  5. Step 5: Solve for x
    x = 293,538,944.00/19,730.92
  6. Step 6: Final answer
    x = 14,877.10

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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.