Home / 30,914.11-42,661.47-17,485.08

Finding the Fourth Proportional to 30,914.11, 42,661.47 and 17,485.08

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Solution

The fourth proportional to 30,914.11, 42,661.47 and 17,485.08 is: 24,129.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,914.11 : 42,661.47 = 17,485.08 : x
  2. Step 2: Convert to fraction form
    30,914.11/42,661.47 = 17,485.08/x
  3. Step 3: Cross multiply
    30,914.11x = 42,661.47 × 17,485.08
  4. Step 4: Simplify right side
    30,914.11x = 745,939,002.56
  5. Step 5: Solve for x
    x = 745,939,002.56/30,914.11
  6. Step 6: Final answer
    x = 24,129.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.