Home / 28,631.63-42,950.48-7,855.13

Finding the Fourth Proportional to 28,631.63, 42,950.48 and 7,855.13

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Solution

The fourth proportional to 28,631.63, 42,950.48 and 7,855.13 is: 11,783.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.63 : 42,950.48 = 7,855.13 : x
  2. Step 2: Convert to fraction form
    28,631.63/42,950.48 = 7,855.13/x
  3. Step 3: Cross multiply
    28,631.63x = 42,950.48 × 7,855.13
  4. Step 4: Simplify right side
    28,631.63x = 337,381,349.93
  5. Step 5: Solve for x
    x = 337,381,349.93/28,631.63
  6. Step 6: Final answer
    x = 11,783.52

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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.