Home / 21,615.65-29,828.99-12,055.83

Finding the Fourth Proportional to 21,615.65, 29,828.99 and 12,055.83

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Solution

The fourth proportional to 21,615.65, 29,828.99 and 12,055.83 is: 16,636.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.65 : 29,828.99 = 12,055.83 : x
  2. Step 2: Convert to fraction form
    21,615.65/29,828.99 = 12,055.83/x
  3. Step 3: Cross multiply
    21,615.65x = 29,828.99 × 12,055.83
  4. Step 4: Simplify right side
    21,615.65x = 359,613,232.51
  5. Step 5: Solve for x
    x = 359,613,232.51/21,615.65
  6. Step 6: Final answer
    x = 16,636.71

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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.