Home / 28,650.84-39,538.53-15,904.32

Finding the Fourth Proportional to 28,650.84, 39,538.53 and 15,904.32

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Solution

The fourth proportional to 28,650.84, 39,538.53 and 15,904.32 is: 21,948.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650.84 : 39,538.53 = 15,904.32 : x
  2. Step 2: Convert to fraction form
    28,650.84/39,538.53 = 15,904.32/x
  3. Step 3: Cross multiply
    28,650.84x = 39,538.53 × 15,904.32
  4. Step 4: Simplify right side
    28,650.84x = 628,833,433.45
  5. Step 5: Solve for x
    x = 628,833,433.45/28,650.84
  6. Step 6: Final answer
    x = 21,948.17

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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.