Home / 30,140.07-45,195.53-10,411.71

Finding the Fourth Proportional to 30,140.07, 45,195.53 and 10,411.71

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Solution

The fourth proportional to 30,140.07, 45,195.53 and 10,411.71 is: 15,612.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,140.07 : 45,195.53 = 10,411.71 : x
  2. Step 2: Convert to fraction form
    30,140.07/45,195.53 = 10,411.71/x
  3. Step 3: Cross multiply
    30,140.07x = 45,195.53 × 10,411.71
  4. Step 4: Simplify right side
    30,140.07x = 470,562,699.60
  5. Step 5: Solve for x
    x = 470,562,699.60/30,140.07
  6. Step 6: Final answer
    x = 15,612.53

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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.