Home / 30,151.23-45,231.29-10,424.49

Finding the Fourth Proportional to 30,151.23, 45,231.29 and 10,424.49

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Solution

The fourth proportional to 30,151.23, 45,231.29 and 10,424.49 is: 15,638.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,151.23 : 45,231.29 = 10,424.49 : x
  2. Step 2: Convert to fraction form
    30,151.23/45,231.29 = 10,424.49/x
  3. Step 3: Cross multiply
    30,151.23x = 45,231.29 × 10,424.49
  4. Step 4: Simplify right side
    30,151.23x = 471,513,130.29
  5. Step 5: Solve for x
    x = 471,513,130.29/30,151.23
  6. Step 6: Final answer
    x = 15,638.27

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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.