Home / 28,032.46-38,686.72-17,135.28

Finding the Fourth Proportional to 28,032.46, 38,686.72 and 17,135.28

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Solution

The fourth proportional to 28,032.46, 38,686.72 and 17,135.28 is: 23,647.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032.46 : 38,686.72 = 17,135.28 : x
  2. Step 2: Convert to fraction form
    28,032.46/38,686.72 = 17,135.28/x
  3. Step 3: Cross multiply
    28,032.46x = 38,686.72 × 17,135.28
  4. Step 4: Simplify right side
    28,032.46x = 662,907,779.48
  5. Step 5: Solve for x
    x = 662,907,779.48/28,032.46
  6. Step 6: Final answer
    x = 23,647.86

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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.