Home / 30,987.75-46,650.23-28,232.13

Finding the Fourth Proportional to 30,987.75, 46,650.23 and 28,232.13

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Solution

The fourth proportional to 30,987.75, 46,650.23 and 28,232.13 is: 42,501.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987.75 : 46,650.23 = 28,232.13 : x
  2. Step 2: Convert to fraction form
    30,987.75/46,650.23 = 28,232.13/x
  3. Step 3: Cross multiply
    30,987.75x = 46,650.23 × 28,232.13
  4. Step 4: Simplify right side
    30,987.75x = 1,317,035,428.47
  5. Step 5: Solve for x
    x = 1,317,035,428.47/30,987.75
  6. Step 6: Final answer
    x = 42,501.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.