Home / 30,720.13-46,087.50-9,943.63

Finding the Fourth Proportional to 30,720.13, 46,087.50 and 9,943.63

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Solution

The fourth proportional to 30,720.13, 46,087.50 and 9,943.63 is: 14,917.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.13 : 46,087.50 = 9,943.63 : x
  2. Step 2: Convert to fraction form
    30,720.13/46,087.50 = 9,943.63/x
  3. Step 3: Cross multiply
    30,720.13x = 46,087.50 × 9,943.63
  4. Step 4: Simplify right side
    30,720.13x = 458,277,047.63
  5. Step 5: Solve for x
    x = 458,277,047.63/30,720.13
  6. Step 6: Final answer
    x = 14,917.81

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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.