Home / 28,163.23-38,862.59-16,830.47

Finding the Fourth Proportional to 28,163.23, 38,862.59 and 16,830.47

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Solution

The fourth proportional to 28,163.23, 38,862.59 and 16,830.47 is: 23,224.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,163.23 : 38,862.59 = 16,830.47 : x
  2. Step 2: Convert to fraction form
    28,163.23/38,862.59 = 16,830.47/x
  3. Step 3: Cross multiply
    28,163.23x = 38,862.59 × 16,830.47
  4. Step 4: Simplify right side
    28,163.23x = 654,075,460.80
  5. Step 5: Solve for x
    x = 654,075,460.80/28,163.23
  6. Step 6: Final answer
    x = 23,224.45

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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.