Home / 30,557.80-45,830.30-14,986.60

Finding the Fourth Proportional to 30,557.80, 45,830.30 and 14,986.60

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Solution

The fourth proportional to 30,557.80, 45,830.30 and 14,986.60 is: 22,476.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,557.80 : 45,830.30 = 14,986.60 : x
  2. Step 2: Convert to fraction form
    30,557.80/45,830.30 = 14,986.60/x
  3. Step 3: Cross multiply
    30,557.80x = 45,830.30 × 14,986.60
  4. Step 4: Simplify right side
    30,557.80x = 686,840,373.98
  5. Step 5: Solve for x
    x = 686,840,373.98/30,557.80
  6. Step 6: Final answer
    x = 22,476.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.