Home / 30,020.65-45,031.89-10,298.93

Finding the Fourth Proportional to 30,020.65, 45,031.89 and 10,298.93

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Solution

The fourth proportional to 30,020.65, 45,031.89 and 10,298.93 is: 15,448.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020.65 : 45,031.89 = 10,298.93 : x
  2. Step 2: Convert to fraction form
    30,020.65/45,031.89 = 10,298.93/x
  3. Step 3: Cross multiply
    30,020.65x = 45,031.89 × 10,298.93
  4. Step 4: Simplify right side
    30,020.65x = 463,780,282.88
  5. Step 5: Solve for x
    x = 463,780,282.88/30,020.65
  6. Step 6: Final answer
    x = 15,448.71

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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.