Home / 30,971.35-46,475.25-12,253.20

Finding the Fourth Proportional to 30,971.35, 46,475.25 and 12,253.20

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Solution

The fourth proportional to 30,971.35, 46,475.25 and 12,253.20 is: 18,387.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,971.35 : 46,475.25 = 12,253.20 : x
  2. Step 2: Convert to fraction form
    30,971.35/46,475.25 = 12,253.20/x
  3. Step 3: Cross multiply
    30,971.35x = 46,475.25 × 12,253.20
  4. Step 4: Simplify right side
    30,971.35x = 569,470,533.30
  5. Step 5: Solve for x
    x = 569,470,533.30/30,971.35
  6. Step 6: Final answer
    x = 18,387.01

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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.