Home / 47,428.72-65,482.16-30,440.30

Finding the Fourth Proportional to 47,428.72, 65,482.16 and 30,440.30

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Solution

The fourth proportional to 47,428.72, 65,482.16 and 30,440.30 is: 42,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,428.72 : 65,482.16 = 30,440.30 : x
  2. Step 2: Convert to fraction form
    47,428.72/65,482.16 = 30,440.30/x
  3. Step 3: Cross multiply
    47,428.72x = 65,482.16 × 30,440.30
  4. Step 4: Simplify right side
    47,428.72x = 1,993,296,115.44
  5. Step 5: Solve for x
    x = 1,993,296,115.44/47,428.72
  6. Step 6: Final answer
    x = 42,027.20

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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.