Home / 30,461.04-45,705.60-18,766.80

Finding the Fourth Proportional to 30,461.04, 45,705.60 and 18,766.80

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Solution

The fourth proportional to 30,461.04, 45,705.60 and 18,766.80 is: 28,158.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,461.04 : 45,705.60 = 18,766.80 : x
  2. Step 2: Convert to fraction form
    30,461.04/45,705.60 = 18,766.80/x
  3. Step 3: Cross multiply
    30,461.04x = 45,705.60 × 18,766.80
  4. Step 4: Simplify right side
    30,461.04x = 857,747,854.08
  5. Step 5: Solve for x
    x = 857,747,854.08/30,461.04
  6. Step 6: Final answer
    x = 28,158.85

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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.