Home / 30,487.16-45,777.21-28,983.60

Finding the Fourth Proportional to 30,487.16, 45,777.21 and 28,983.60

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Solution

The fourth proportional to 30,487.16, 45,777.21 and 28,983.60 is: 43,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,487.16 : 45,777.21 = 28,983.60 : x
  2. Step 2: Convert to fraction form
    30,487.16/45,777.21 = 28,983.60/x
  3. Step 3: Cross multiply
    30,487.16x = 45,777.21 × 28,983.60
  4. Step 4: Simplify right side
    30,487.16x = 1,326,788,310.11
  5. Step 5: Solve for x
    x = 1,326,788,310.11/30,487.16
  6. Step 6: Final answer
    x = 43,519.58

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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.