Home / 28,036.18-42,054.42-8,314.88

Finding the Fourth Proportional to 28,036.18, 42,054.42 and 8,314.88

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Solution

The fourth proportional to 28,036.18, 42,054.42 and 8,314.88 is: 12,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.18 : 42,054.42 = 8,314.88 : x
  2. Step 2: Convert to fraction form
    28,036.18/42,054.42 = 8,314.88/x
  3. Step 3: Cross multiply
    28,036.18x = 42,054.42 × 8,314.88
  4. Step 4: Simplify right side
    28,036.18x = 349,677,455.77
  5. Step 5: Solve for x
    x = 349,677,455.77/28,036.18
  6. Step 6: Final answer
    x = 12,472.37

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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.