Home / 30,154.79-45,220.04-9,088.31

Finding the Fourth Proportional to 30,154.79, 45,220.04 and 9,088.31

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Solution

The fourth proportional to 30,154.79, 45,220.04 and 9,088.31 is: 13,628.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,154.79 : 45,220.04 = 9,088.31 : x
  2. Step 2: Convert to fraction form
    30,154.79/45,220.04 = 9,088.31/x
  3. Step 3: Cross multiply
    30,154.79x = 45,220.04 × 9,088.31
  4. Step 4: Simplify right side
    30,154.79x = 410,973,843.42
  5. Step 5: Solve for x
    x = 410,973,843.42/30,154.79
  6. Step 6: Final answer
    x = 13,628.81

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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.