Home / 30,433.13-42,009.42-27,240.78

Finding the Fourth Proportional to 30,433.13, 42,009.42 and 27,240.78

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Solution

The fourth proportional to 30,433.13, 42,009.42 and 27,240.78 is: 37,602.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,433.13 : 42,009.42 = 27,240.78 : x
  2. Step 2: Convert to fraction form
    30,433.13/42,009.42 = 27,240.78/x
  3. Step 3: Cross multiply
    30,433.13x = 42,009.42 × 27,240.78
  4. Step 4: Simplify right side
    30,433.13x = 1,144,369,368.15
  5. Step 5: Solve for x
    x = 1,144,369,368.15/30,433.13
  6. Step 6: Final answer
    x = 37,602.75

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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.