Home / 28,652.51-39,539.83-15,904.94

Finding the Fourth Proportional to 28,652.51, 39,539.83 and 15,904.94

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Solution

The fourth proportional to 28,652.51, 39,539.83 and 15,904.94 is: 21,948.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,652.51 : 39,539.83 = 15,904.94 : x
  2. Step 2: Convert to fraction form
    28,652.51/39,539.83 = 15,904.94/x
  3. Step 3: Cross multiply
    28,652.51x = 39,539.83 × 15,904.94
  4. Step 4: Simplify right side
    28,652.51x = 628,878,544.24
  5. Step 5: Solve for x
    x = 628,878,544.24/28,652.51
  6. Step 6: Final answer
    x = 21,948.47

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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.