Home / 31,289.44-46,947.60-20,763.14

Finding the Fourth Proportional to 31,289.44, 46,947.60 and 20,763.14

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Solution

The fourth proportional to 31,289.44, 46,947.60 and 20,763.14 is: 31,153.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.44 : 46,947.60 = 20,763.14 : x
  2. Step 2: Convert to fraction form
    31,289.44/46,947.60 = 20,763.14/x
  3. Step 3: Cross multiply
    31,289.44x = 46,947.60 × 20,763.14
  4. Step 4: Simplify right side
    31,289.44x = 974,779,451.94
  5. Step 5: Solve for x
    x = 974,779,451.94/31,289.44
  6. Step 6: Final answer
    x = 31,153.62

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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.