Home / 30,219.16-45,336.94-9,158.35

Finding the Fourth Proportional to 30,219.16, 45,336.94 and 9,158.35

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Solution

The fourth proportional to 30,219.16, 45,336.94 and 9,158.35 is: 13,740.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.16 : 45,336.94 = 9,158.35 : x
  2. Step 2: Convert to fraction form
    30,219.16/45,336.94 = 9,158.35/x
  3. Step 3: Cross multiply
    30,219.16x = 45,336.94 × 9,158.35
  4. Step 4: Simplify right side
    30,219.16x = 415,211,564.45
  5. Step 5: Solve for x
    x = 415,211,564.45/30,219.16
  6. Step 6: Final answer
    x = 13,740.01

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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.