Home / 31,208.40-42,849.81-30,396.24

Finding the Fourth Proportional to 31,208.40, 42,849.81 and 30,396.24

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Solution

The fourth proportional to 31,208.40, 42,849.81 and 30,396.24 is: 41,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,208.40 : 42,849.81 = 30,396.24 : x
  2. Step 2: Convert to fraction form
    31,208.40/42,849.81 = 30,396.24/x
  3. Step 3: Cross multiply
    31,208.40x = 42,849.81 × 30,396.24
  4. Step 4: Simplify right side
    31,208.40x = 1,302,473,108.71
  5. Step 5: Solve for x
    x = 1,302,473,108.71/31,208.40
  6. Step 6: Final answer
    x = 41,734.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.