Home / 19,803.84-27,350.32-13,458.72

Finding the Fourth Proportional to 19,803.84, 27,350.32 and 13,458.72

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Solution

The fourth proportional to 19,803.84, 27,350.32 and 13,458.72 is: 18,587.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,803.84 : 27,350.32 = 13,458.72 : x
  2. Step 2: Convert to fraction form
    19,803.84/27,350.32 = 13,458.72/x
  3. Step 3: Cross multiply
    19,803.84x = 27,350.32 × 13,458.72
  4. Step 4: Simplify right side
    19,803.84x = 368,100,298.79
  5. Step 5: Solve for x
    x = 368,100,298.79/19,803.84
  6. Step 6: Final answer
    x = 18,587.32

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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.