Home / 19,661.51-27,159.42-15,710.33

Finding the Fourth Proportional to 19,661.51, 27,159.42 and 15,710.33

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Solution

The fourth proportional to 19,661.51, 27,159.42 and 15,710.33 is: 21,701.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.51 : 27,159.42 = 15,710.33 : x
  2. Step 2: Convert to fraction form
    19,661.51/27,159.42 = 15,710.33/x
  3. Step 3: Cross multiply
    19,661.51x = 27,159.42 × 15,710.33
  4. Step 4: Simplify right side
    19,661.51x = 426,683,315.01
  5. Step 5: Solve for x
    x = 426,683,315.01/19,661.51
  6. Step 6: Final answer
    x = 21,701.46

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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.