Home / 21,184.36-29,225.66-12,225.51

Finding the Fourth Proportional to 21,184.36, 29,225.66 and 12,225.51

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Solution

The fourth proportional to 21,184.36, 29,225.66 and 12,225.51 is: 16,866.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.36 : 29,225.66 = 12,225.51 : x
  2. Step 2: Convert to fraction form
    21,184.36/29,225.66 = 12,225.51/x
  3. Step 3: Cross multiply
    21,184.36x = 29,225.66 × 12,225.51
  4. Step 4: Simplify right side
    21,184.36x = 357,298,537.46
  5. Step 5: Solve for x
    x = 357,298,537.46/21,184.36
  6. Step 6: Final answer
    x = 16,866.15

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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.