Home / 30,488.10-45,720.76-10,491.99

Finding the Fourth Proportional to 30,488.10, 45,720.76 and 10,491.99

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Solution

The fourth proportional to 30,488.10, 45,720.76 and 10,491.99 is: 15,734.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,488.10 : 45,720.76 = 10,491.99 : x
  2. Step 2: Convert to fraction form
    30,488.10/45,720.76 = 10,491.99/x
  3. Step 3: Cross multiply
    30,488.10x = 45,720.76 × 10,491.99
  4. Step 4: Simplify right side
    30,488.10x = 479,701,756.71
  5. Step 5: Solve for x
    x = 479,701,756.71/30,488.10
  6. Step 6: Final answer
    x = 15,734.07

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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.