Home / 19,643.74-29,497.77-12,900.22

Finding the Fourth Proportional to 19,643.74, 29,497.77 and 12,900.22

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Solution

The fourth proportional to 19,643.74, 29,497.77 and 12,900.22 is: 19,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.74 : 29,497.77 = 12,900.22 : x
  2. Step 2: Convert to fraction form
    19,643.74/29,497.77 = 12,900.22/x
  3. Step 3: Cross multiply
    19,643.74x = 29,497.77 × 12,900.22
  4. Step 4: Simplify right side
    19,643.74x = 380,527,722.51
  5. Step 5: Solve for x
    x = 380,527,722.51/19,643.74
  6. Step 6: Final answer
    x = 19,371.45

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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.