Home / 30,640.16-45,964.20-10,924.40

Finding the Fourth Proportional to 30,640.16, 45,964.20 and 10,924.40

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Solution

The fourth proportional to 30,640.16, 45,964.20 and 10,924.40 is: 16,388.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,640.16 : 45,964.20 = 10,924.40 : x
  2. Step 2: Convert to fraction form
    30,640.16/45,964.20 = 10,924.40/x
  3. Step 3: Cross multiply
    30,640.16x = 45,964.20 × 10,924.40
  4. Step 4: Simplify right side
    30,640.16x = 502,131,306.48
  5. Step 5: Solve for x
    x = 502,131,306.48/30,640.16
  6. Step 6: Final answer
    x = 16,388.01

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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.