Home / 28,678.56-43,014.60-9,955.32

Finding the Fourth Proportional to 28,678.56, 43,014.60 and 9,955.32

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Solution

The fourth proportional to 28,678.56, 43,014.60 and 9,955.32 is: 14,931.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.56 : 43,014.60 = 9,955.32 : x
  2. Step 2: Convert to fraction form
    28,678.56/43,014.60 = 9,955.32/x
  3. Step 3: Cross multiply
    28,678.56x = 43,014.60 × 9,955.32
  4. Step 4: Simplify right side
    28,678.56x = 428,224,107.67
  5. Step 5: Solve for x
    x = 428,224,107.67/28,678.56
  6. Step 6: Final answer
    x = 14,931.86

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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.