Home / 30,346.68-45,511.11-10,621.56

Finding the Fourth Proportional to 30,346.68, 45,511.11 and 10,621.56

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Solution

The fourth proportional to 30,346.68, 45,511.11 and 10,621.56 is: 15,929.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,346.68 : 45,511.11 = 10,621.56 : x
  2. Step 2: Convert to fraction form
    30,346.68/45,511.11 = 10,621.56/x
  3. Step 3: Cross multiply
    30,346.68x = 45,511.11 × 10,621.56
  4. Step 4: Simplify right side
    30,346.68x = 483,398,985.53
  5. Step 5: Solve for x
    x = 483,398,985.53/30,346.68
  6. Step 6: Final answer
    x = 15,929.22

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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.