Home / 30,207.89-45,325.34-15,409.01

Finding the Fourth Proportional to 30,207.89, 45,325.34 and 15,409.01

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Solution

The fourth proportional to 30,207.89, 45,325.34 and 15,409.01 is: 23,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.89 : 45,325.34 = 15,409.01 : x
  2. Step 2: Convert to fraction form
    30,207.89/45,325.34 = 15,409.01/x
  3. Step 3: Cross multiply
    30,207.89x = 45,325.34 × 15,409.01
  4. Step 4: Simplify right side
    30,207.89x = 698,418,313.64
  5. Step 5: Solve for x
    x = 698,418,313.64/30,207.89
  6. Step 6: Final answer
    x = 23,120.40

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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.