Home / 30,927.81-46,360.56-12,221.10

Finding the Fourth Proportional to 30,927.81, 46,360.56 and 12,221.10

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Solution

The fourth proportional to 30,927.81, 46,360.56 and 12,221.10 is: 18,319.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,927.81 : 46,360.56 = 12,221.10 : x
  2. Step 2: Convert to fraction form
    30,927.81/46,360.56 = 12,221.10/x
  3. Step 3: Cross multiply
    30,927.81x = 46,360.56 × 12,221.10
  4. Step 4: Simplify right side
    30,927.81x = 566,577,039.82
  5. Step 5: Solve for x
    x = 566,577,039.82/30,927.81
  6. Step 6: Final answer
    x = 18,319.34

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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.