Home / 28,923.40-43,389.15-12,283.30

Finding the Fourth Proportional to 28,923.40, 43,389.15 and 12,283.30

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Solution

The fourth proportional to 28,923.40, 43,389.15 and 12,283.30 is: 18,426.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,923.40 : 43,389.15 = 12,283.30 : x
  2. Step 2: Convert to fraction form
    28,923.40/43,389.15 = 12,283.30/x
  3. Step 3: Cross multiply
    28,923.40x = 43,389.15 × 12,283.30
  4. Step 4: Simplify right side
    28,923.40x = 532,961,946.20
  5. Step 5: Solve for x
    x = 532,961,946.20/28,923.40
  6. Step 6: Final answer
    x = 18,426.67

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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.