Home / 28,950.05-43,427.10-12,308.20

Finding the Fourth Proportional to 28,950.05, 43,427.10 and 12,308.20

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Solution

The fourth proportional to 28,950.05, 43,427.10 and 12,308.20 is: 18,463.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,950.05 : 43,427.10 = 12,308.20 : x
  2. Step 2: Convert to fraction form
    28,950.05/43,427.10 = 12,308.20/x
  3. Step 3: Cross multiply
    28,950.05x = 43,427.10 × 12,308.20
  4. Step 4: Simplify right side
    28,950.05x = 534,509,215.08
  5. Step 5: Solve for x
    x = 534,509,215.08/28,950.05
  6. Step 6: Final answer
    x = 18,463.15

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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.