Home / 30,750.12-46,131.66-9,972

Finding the Fourth Proportional to 30,750.12, 46,131.66 and 9,972

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Solution

The fourth proportional to 30,750.12, 46,131.66 and 9,972 is: 14,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,750.12 : 46,131.66 = 9,972 : x
  2. Step 2: Convert to fraction form
    30,750.12/46,131.66 = 9,972/x
  3. Step 3: Cross multiply
    30,750.12x = 46,131.66 × 9,972
  4. Step 4: Simplify right side
    30,750.12x = 460,024,913.52
  5. Step 5: Solve for x
    x = 460,024,913.52/30,750.12
  6. Step 6: Final answer
    x = 14,960.10

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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.