Home / 30,554.21-42,163.64-17,808.05

Finding the Fourth Proportional to 30,554.21, 42,163.64 and 17,808.05

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Solution

The fourth proportional to 30,554.21, 42,163.64 and 17,808.05 is: 24,574.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,554.21 : 42,163.64 = 17,808.05 : x
  2. Step 2: Convert to fraction form
    30,554.21/42,163.64 = 17,808.05/x
  3. Step 3: Cross multiply
    30,554.21x = 42,163.64 × 17,808.05
  4. Step 4: Simplify right side
    30,554.21x = 750,852,292.45
  5. Step 5: Solve for x
    x = 750,852,292.45/30,554.21
  6. Step 6: Final answer
    x = 24,574.43

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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.