Home / 28,164.51-38,862.99-15,589.26

Finding the Fourth Proportional to 28,164.51, 38,862.99 and 15,589.26

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Solution

The fourth proportional to 28,164.51, 38,862.99 and 15,589.26 is: 21,510.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,164.51 : 38,862.99 = 15,589.26 : x
  2. Step 2: Convert to fraction form
    28,164.51/38,862.99 = 15,589.26/x
  3. Step 3: Cross multiply
    28,164.51x = 38,862.99 × 15,589.26
  4. Step 4: Simplify right side
    28,164.51x = 605,845,255.49
  5. Step 5: Solve for x
    x = 605,845,255.49/28,164.51
  6. Step 6: Final answer
    x = 21,510.95

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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.