Home / 19,852.32-27,390.56-12,782.84

Finding the Fourth Proportional to 19,852.32, 27,390.56 and 12,782.84

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Solution

The fourth proportional to 19,852.32, 27,390.56 and 12,782.84 is: 17,636.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,852.32 : 27,390.56 = 12,782.84 : x
  2. Step 2: Convert to fraction form
    19,852.32/27,390.56 = 12,782.84/x
  3. Step 3: Cross multiply
    19,852.32x = 27,390.56 × 12,782.84
  4. Step 4: Simplify right side
    19,852.32x = 350,129,145.99
  5. Step 5: Solve for x
    x = 350,129,145.99/19,852.32
  6. Step 6: Final answer
    x = 17,636.69

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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.