Home / 28,529.71-42,803.67-11,891.50

Finding the Fourth Proportional to 28,529.71, 42,803.67 and 11,891.50

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Solution

The fourth proportional to 28,529.71, 42,803.67 and 11,891.50 is: 17,841.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,529.71 : 42,803.67 = 11,891.50 : x
  2. Step 2: Convert to fraction form
    28,529.71/42,803.67 = 11,891.50/x
  3. Step 3: Cross multiply
    28,529.71x = 42,803.67 × 11,891.50
  4. Step 4: Simplify right side
    28,529.71x = 508,999,841.81
  5. Step 5: Solve for x
    x = 508,999,841.81/28,529.71
  6. Step 6: Final answer
    x = 17,841.05

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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.