Home / 39,088.66-58,611.12-12,786.34

Finding the Fourth Proportional to 39,088.66, 58,611.12 and 12,786.34

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Solution

The fourth proportional to 39,088.66, 58,611.12 and 12,786.34 is: 19,172.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,088.66 : 58,611.12 = 12,786.34 : x
  2. Step 2: Convert to fraction form
    39,088.66/58,611.12 = 12,786.34/x
  3. Step 3: Cross multiply
    39,088.66x = 58,611.12 × 12,786.34
  4. Step 4: Simplify right side
    39,088.66x = 749,421,708.10
  5. Step 5: Solve for x
    x = 749,421,708.10/39,088.66
  6. Step 6: Final answer
    x = 19,172.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.