Home / 19,730.60-27,228.74-10,778.02

Finding the Fourth Proportional to 19,730.60, 27,228.74 and 10,778.02

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Solution

The fourth proportional to 19,730.60, 27,228.74 and 10,778.02 is: 14,873.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,730.60 : 27,228.74 = 10,778.02 : x
  2. Step 2: Convert to fraction form
    19,730.60/27,228.74 = 10,778.02/x
  3. Step 3: Cross multiply
    19,730.60x = 27,228.74 × 10,778.02
  4. Step 4: Simplify right side
    19,730.60x = 293,471,904.29
  5. Step 5: Solve for x
    x = 293,471,904.29/19,730.60
  6. Step 6: Final answer
    x = 14,873.95

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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.