Home / 28,981.80-43,461.90-10,254.60

Finding the Fourth Proportional to 28,981.80, 43,461.90 and 10,254.60

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Solution

The fourth proportional to 28,981.80, 43,461.90 and 10,254.60 is: 15,378.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981.80 : 43,461.90 = 10,254.60 : x
  2. Step 2: Convert to fraction form
    28,981.80/43,461.90 = 10,254.60/x
  3. Step 3: Cross multiply
    28,981.80x = 43,461.90 × 10,254.60
  4. Step 4: Simplify right side
    28,981.80x = 445,684,399.74
  5. Step 5: Solve for x
    x = 445,684,399.74/28,981.80
  6. Step 6: Final answer
    x = 15,378.08

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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.