Home / 30,002.10-45,003.15-9,225.60

Finding the Fourth Proportional to 30,002.10, 45,003.15 and 9,225.60

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Solution

The fourth proportional to 30,002.10, 45,003.15 and 9,225.60 is: 13,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,002.10 : 45,003.15 = 9,225.60 : x
  2. Step 2: Convert to fraction form
    30,002.10/45,003.15 = 9,225.60/x
  3. Step 3: Cross multiply
    30,002.10x = 45,003.15 × 9,225.60
  4. Step 4: Simplify right side
    30,002.10x = 415,181,060.64
  5. Step 5: Solve for x
    x = 415,181,060.64/30,002.10
  6. Step 6: Final answer
    x = 13,838.40

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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.