Home / 19,830.35-27,351.60-12,750.01

Finding the Fourth Proportional to 19,830.35, 27,351.60 and 12,750.01

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Solution

The fourth proportional to 19,830.35, 27,351.60 and 12,750.01 is: 17,585.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.35 : 27,351.60 = 12,750.01 : x
  2. Step 2: Convert to fraction form
    19,830.35/27,351.60 = 12,750.01/x
  3. Step 3: Cross multiply
    19,830.35x = 27,351.60 × 12,750.01
  4. Step 4: Simplify right side
    19,830.35x = 348,733,036.76
  5. Step 5: Solve for x
    x = 348,733,036.76/19,830.35
  6. Step 6: Final answer
    x = 17,585.82

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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.