Home / 28,534.54-39,376.59-15,788.26

Finding the Fourth Proportional to 28,534.54, 39,376.59 and 15,788.26

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Solution

The fourth proportional to 28,534.54, 39,376.59 and 15,788.26 is: 21,787.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,534.54 : 39,376.59 = 15,788.26 : x
  2. Step 2: Convert to fraction form
    28,534.54/39,376.59 = 15,788.26/x
  3. Step 3: Cross multiply
    28,534.54x = 39,376.59 × 15,788.26
  4. Step 4: Simplify right side
    28,534.54x = 621,687,840.83
  5. Step 5: Solve for x
    x = 621,687,840.83/28,534.54
  6. Step 6: Final answer
    x = 21,787.20

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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.