Home / 28,368.70-42,553.05-18,527.20

Finding the Fourth Proportional to 28,368.70, 42,553.05 and 18,527.20

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Solution

The fourth proportional to 28,368.70, 42,553.05 and 18,527.20 is: 27,790.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.70 : 42,553.05 = 18,527.20 : x
  2. Step 2: Convert to fraction form
    28,368.70/42,553.05 = 18,527.20/x
  3. Step 3: Cross multiply
    28,368.70x = 42,553.05 × 18,527.20
  4. Step 4: Simplify right side
    28,368.70x = 788,388,867.96
  5. Step 5: Solve for x
    x = 788,388,867.96/28,368.70
  6. Step 6: Final answer
    x = 27,790.80

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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.