Home / 28,903.40-43,355.10-14,114.60

Finding the Fourth Proportional to 28,903.40, 43,355.10 and 14,114.60

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Solution

The fourth proportional to 28,903.40, 43,355.10 and 14,114.60 is: 21,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.40 : 43,355.10 = 14,114.60 : x
  2. Step 2: Convert to fraction form
    28,903.40/43,355.10 = 14,114.60/x
  3. Step 3: Cross multiply
    28,903.40x = 43,355.10 × 14,114.60
  4. Step 4: Simplify right side
    28,903.40x = 611,939,894.46
  5. Step 5: Solve for x
    x = 611,939,894.46/28,903.40
  6. Step 6: Final answer
    x = 21,171.90

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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.