Home / 19,888.26-27,449.98-12,615.65

Finding the Fourth Proportional to 19,888.26, 27,449.98 and 12,615.65

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Solution

The fourth proportional to 19,888.26, 27,449.98 and 12,615.65 is: 17,412.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.26 : 27,449.98 = 12,615.65 : x
  2. Step 2: Convert to fraction form
    19,888.26/27,449.98 = 12,615.65/x
  3. Step 3: Cross multiply
    19,888.26x = 27,449.98 × 12,615.65
  4. Step 4: Simplify right side
    19,888.26x = 346,299,208.48
  5. Step 5: Solve for x
    x = 346,299,208.48/19,888.26
  6. Step 6: Final answer
    x = 17,412.24

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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.