Home / 30,933.21-42,688.65-16,786.06

Finding the Fourth Proportional to 30,933.21, 42,688.65 and 16,786.06

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Solution

The fourth proportional to 30,933.21, 42,688.65 and 16,786.06 is: 23,165.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,933.21 : 42,688.65 = 16,786.06 : x
  2. Step 2: Convert to fraction form
    30,933.21/42,688.65 = 16,786.06/x
  3. Step 3: Cross multiply
    30,933.21x = 42,688.65 × 16,786.06
  4. Step 4: Simplify right side
    30,933.21x = 716,574,240.22
  5. Step 5: Solve for x
    x = 716,574,240.22/30,933.21
  6. Step 6: Final answer
    x = 23,165.21

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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.