Home / 28,631.43-42,948.36-7,854.93

Finding the Fourth Proportional to 28,631.43, 42,948.36 and 7,854.93

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Solution

The fourth proportional to 28,631.43, 42,948.36 and 7,854.93 is: 11,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.43 : 42,948.36 = 7,854.93 : x
  2. Step 2: Convert to fraction form
    28,631.43/42,948.36 = 7,854.93/x
  3. Step 3: Cross multiply
    28,631.43x = 42,948.36 × 7,854.93
  4. Step 4: Simplify right side
    28,631.43x = 337,356,361.41
  5. Step 5: Solve for x
    x = 337,356,361.41/28,631.43
  6. Step 6: Final answer
    x = 11,782.73

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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.