Home / 47,674.16-65,780.76-28,812.32

Finding the Fourth Proportional to 47,674.16, 65,780.76 and 28,812.32

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Solution

The fourth proportional to 47,674.16, 65,780.76 and 28,812.32 is: 39,755.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,674.16 : 65,780.76 = 28,812.32 : x
  2. Step 2: Convert to fraction form
    47,674.16/65,780.76 = 28,812.32/x
  3. Step 3: Cross multiply
    47,674.16x = 65,780.76 × 28,812.32
  4. Step 4: Simplify right side
    47,674.16x = 1,895,296,306.96
  5. Step 5: Solve for x
    x = 1,895,296,306.96/47,674.16
  6. Step 6: Final answer
    x = 39,755.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.