Home / 30,210.36-45,290.58-13,331.34

Finding the Fourth Proportional to 30,210.36, 45,290.58 and 13,331.34

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Solution

The fourth proportional to 30,210.36, 45,290.58 and 13,331.34 is: 19,986.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.36 : 45,290.58 = 13,331.34 : x
  2. Step 2: Convert to fraction form
    30,210.36/45,290.58 = 13,331.34/x
  3. Step 3: Cross multiply
    30,210.36x = 45,290.58 × 13,331.34
  4. Step 4: Simplify right side
    30,210.36x = 603,784,120.78
  5. Step 5: Solve for x
    x = 603,784,120.78/30,210.36
  6. Step 6: Final answer
    x = 19,986.00

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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.