Home / 30,803.82-42,509.23-16,656.63

Finding the Fourth Proportional to 30,803.82, 42,509.23 and 16,656.63

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Solution

The fourth proportional to 30,803.82, 42,509.23 and 16,656.63 is: 22,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,803.82 : 42,509.23 = 16,656.63 : x
  2. Step 2: Convert to fraction form
    30,803.82/42,509.23 = 16,656.63/x
  3. Step 3: Cross multiply
    30,803.82x = 42,509.23 × 16,656.63
  4. Step 4: Simplify right side
    30,803.82x = 708,060,515.69
  5. Step 5: Solve for x
    x = 708,060,515.69/30,803.82
  6. Step 6: Final answer
    x = 22,986.13

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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.