Home / 28,830.66-42,959.38-25,686.50

Finding the Fourth Proportional to 28,830.66, 42,959.38 and 25,686.50

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Solution

The fourth proportional to 28,830.66, 42,959.38 and 25,686.50 is: 38,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.66 : 42,959.38 = 25,686.50 : x
  2. Step 2: Convert to fraction form
    28,830.66/42,959.38 = 25,686.50/x
  3. Step 3: Cross multiply
    28,830.66x = 42,959.38 × 25,686.50
  4. Step 4: Simplify right side
    28,830.66x = 1,103,476,114.37
  5. Step 5: Solve for x
    x = 1,103,476,114.37/28,830.66
  6. Step 6: Final answer
    x = 38,274.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.