Home / 30,435.13-42,012.18-27,242.78

Finding the Fourth Proportional to 30,435.13, 42,012.18 and 27,242.78

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Solution

The fourth proportional to 30,435.13, 42,012.18 and 27,242.78 is: 37,605.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,435.13 : 42,012.18 = 27,242.78 : x
  2. Step 2: Convert to fraction form
    30,435.13/42,012.18 = 27,242.78/x
  3. Step 3: Cross multiply
    30,435.13x = 42,012.18 × 27,242.78
  4. Step 4: Simplify right side
    30,435.13x = 1,144,528,682.09
  5. Step 5: Solve for x
    x = 1,144,528,682.09/30,435.13
  6. Step 6: Final answer
    x = 37,605.52

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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.