Home / 28,998.20-43,486.71-12,359.93

Finding the Fourth Proportional to 28,998.20, 43,486.71 and 12,359.93

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Solution

The fourth proportional to 28,998.20, 43,486.71 and 12,359.93 is: 18,535.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998.20 : 43,486.71 = 12,359.93 : x
  2. Step 2: Convert to fraction form
    28,998.20/43,486.71 = 12,359.93/x
  3. Step 3: Cross multiply
    28,998.20x = 43,486.71 × 12,359.93
  4. Step 4: Simplify right side
    28,998.20x = 537,492,427.75
  5. Step 5: Solve for x
    x = 537,492,427.75/28,998.20
  6. Step 6: Final answer
    x = 18,535.37

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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.