Home / 30,369.40-45,554.10-28,522.60

Finding the Fourth Proportional to 30,369.40, 45,554.10 and 28,522.60

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Solution

The fourth proportional to 30,369.40, 45,554.10 and 28,522.60 is: 42,783.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,369.40 : 45,554.10 = 28,522.60 : x
  2. Step 2: Convert to fraction form
    30,369.40/45,554.10 = 28,522.60/x
  3. Step 3: Cross multiply
    30,369.40x = 45,554.10 × 28,522.60
  4. Step 4: Simplify right side
    30,369.40x = 1,299,321,372.66
  5. Step 5: Solve for x
    x = 1,299,321,372.66/30,369.40
  6. Step 6: Final answer
    x = 42,783.90

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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.