Home / 19,615.75-27,031.93-12,529.87

Finding the Fourth Proportional to 19,615.75, 27,031.93 and 12,529.87

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Solution

The fourth proportional to 19,615.75, 27,031.93 and 12,529.87 is: 17,267.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.75 : 27,031.93 = 12,529.87 : x
  2. Step 2: Convert to fraction form
    19,615.75/27,031.93 = 12,529.87/x
  3. Step 3: Cross multiply
    19,615.75x = 27,031.93 × 12,529.87
  4. Step 4: Simplify right side
    19,615.75x = 338,706,568.75
  5. Step 5: Solve for x
    x = 338,706,568.75/19,615.75
  6. Step 6: Final answer
    x = 17,267.07

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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.