Home / 28,051.84-38,711.64-15,476.50

Finding the Fourth Proportional to 28,051.84, 38,711.64 and 15,476.50

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Solution

The fourth proportional to 28,051.84, 38,711.64 and 15,476.50 is: 21,357.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.84 : 38,711.64 = 15,476.50 : x
  2. Step 2: Convert to fraction form
    28,051.84/38,711.64 = 15,476.50/x
  3. Step 3: Cross multiply
    28,051.84x = 38,711.64 × 15,476.50
  4. Step 4: Simplify right side
    28,051.84x = 599,120,696.46
  5. Step 5: Solve for x
    x = 599,120,696.46/28,051.84
  6. Step 6: Final answer
    x = 21,357.63

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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.