Home / 28,389.06-42,583.59-12,811.14

Finding the Fourth Proportional to 28,389.06, 42,583.59 and 12,811.14

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Solution

The fourth proportional to 28,389.06, 42,583.59 and 12,811.14 is: 19,216.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389.06 : 42,583.59 = 12,811.14 : x
  2. Step 2: Convert to fraction form
    28,389.06/42,583.59 = 12,811.14/x
  3. Step 3: Cross multiply
    28,389.06x = 42,583.59 × 12,811.14
  4. Step 4: Simplify right side
    28,389.06x = 545,544,333.19
  5. Step 5: Solve for x
    x = 545,544,333.19/28,389.06
  6. Step 6: Final answer
    x = 19,216.71

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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.