Home / 28,610.84-42,925.57-13,821.45

Finding the Fourth Proportional to 28,610.84, 42,925.57 and 13,821.45

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Solution

The fourth proportional to 28,610.84, 42,925.57 and 13,821.45 is: 20,736.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,610.84 : 42,925.57 = 13,821.45 : x
  2. Step 2: Convert to fraction form
    28,610.84/42,925.57 = 13,821.45/x
  3. Step 3: Cross multiply
    28,610.84x = 42,925.57 × 13,821.45
  4. Step 4: Simplify right side
    28,610.84x = 593,293,619.48
  5. Step 5: Solve for x
    x = 593,293,619.48/28,610.84
  6. Step 6: Final answer
    x = 20,736.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.