Home / 28,289.70-42,403.57-14,227.29

Finding the Fourth Proportional to 28,289.70, 42,403.57 and 14,227.29

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Solution

The fourth proportional to 28,289.70, 42,403.57 and 14,227.29 is: 21,325.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.70 : 42,403.57 = 14,227.29 : x
  2. Step 2: Convert to fraction form
    28,289.70/42,403.57 = 14,227.29/x
  3. Step 3: Cross multiply
    28,289.70x = 42,403.57 × 14,227.29
  4. Step 4: Simplify right side
    28,289.70x = 603,287,851.86
  5. Step 5: Solve for x
    x = 603,287,851.86/28,289.70
  6. Step 6: Final answer
    x = 21,325.35

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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.