Home / 31,054.14-42,855.48-16,907.76

Finding the Fourth Proportional to 31,054.14, 42,855.48 and 16,907.76

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Solution

The fourth proportional to 31,054.14, 42,855.48 and 16,907.76 is: 23,333.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,054.14 : 42,855.48 = 16,907.76 : x
  2. Step 2: Convert to fraction form
    31,054.14/42,855.48 = 16,907.76/x
  3. Step 3: Cross multiply
    31,054.14x = 42,855.48 × 16,907.76
  4. Step 4: Simplify right side
    31,054.14x = 724,590,170.52
  5. Step 5: Solve for x
    x = 724,590,170.52/31,054.14
  6. Step 6: Final answer
    x = 23,333.13

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1.5x scale

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.