Home / 30,749.12-46,130.16-9,971

Finding the Fourth Proportional to 30,749.12, 46,130.16 and 9,971

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Solution

The fourth proportional to 30,749.12, 46,130.16 and 9,971 is: 14,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,749.12 : 46,130.16 = 9,971 : x
  2. Step 2: Convert to fraction form
    30,749.12/46,130.16 = 9,971/x
  3. Step 3: Cross multiply
    30,749.12x = 46,130.16 × 9,971
  4. Step 4: Simplify right side
    30,749.12x = 459,963,825.36
  5. Step 5: Solve for x
    x = 459,963,825.36/30,749.12
  6. Step 6: Final answer
    x = 14,958.60

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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.