Home / 30,446.15-42,016.55-17,018.91

Finding the Fourth Proportional to 30,446.15, 42,016.55 and 17,018.91

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Solution

The fourth proportional to 30,446.15, 42,016.55 and 17,018.91 is: 23,486.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,446.15 : 42,016.55 = 17,018.91 : x
  2. Step 2: Convert to fraction form
    30,446.15/42,016.55 = 17,018.91/x
  3. Step 3: Cross multiply
    30,446.15x = 42,016.55 × 17,018.91
  4. Step 4: Simplify right side
    30,446.15x = 715,075,797.87
  5. Step 5: Solve for x
    x = 715,075,797.87/30,446.15
  6. Step 6: Final answer
    x = 23,486.58

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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.