Home / 30,476.87-42,062.57-18,537.89

Finding the Fourth Proportional to 30,476.87, 42,062.57 and 18,537.89

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Solution

The fourth proportional to 30,476.87, 42,062.57 and 18,537.89 is: 25,585.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,476.87 : 42,062.57 = 18,537.89 : x
  2. Step 2: Convert to fraction form
    30,476.87/42,062.57 = 18,537.89/x
  3. Step 3: Cross multiply
    30,476.87x = 42,062.57 × 18,537.89
  4. Step 4: Simplify right side
    30,476.87x = 779,750,992.78
  5. Step 5: Solve for x
    x = 779,750,992.78/30,476.87
  6. Step 6: Final answer
    x = 25,585.01

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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.