Home / 42,438.96-58,539.24-30,317.04

Finding the Fourth Proportional to 42,438.96, 58,539.24 and 30,317.04

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Solution

The fourth proportional to 42,438.96, 58,539.24 and 30,317.04 is: 41,818.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,438.96 : 58,539.24 = 30,317.04 : x
  2. Step 2: Convert to fraction form
    42,438.96/58,539.24 = 30,317.04/x
  3. Step 3: Cross multiply
    42,438.96x = 58,539.24 × 30,317.04
  4. Step 4: Simplify right side
    42,438.96x = 1,774,736,480.65
  5. Step 5: Solve for x
    x = 1,774,736,480.65/42,438.96
  6. Step 6: Final answer
    x = 41,818.57

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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.