Home / 30,436.16-42,028.62-19,125.26

Finding the Fourth Proportional to 30,436.16, 42,028.62 and 19,125.26

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Solution

The fourth proportional to 30,436.16, 42,028.62 and 19,125.26 is: 26,409.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.16 : 42,028.62 = 19,125.26 : x
  2. Step 2: Convert to fraction form
    30,436.16/42,028.62 = 19,125.26/x
  3. Step 3: Cross multiply
    30,436.16x = 42,028.62 × 19,125.26
  4. Step 4: Simplify right side
    30,436.16x = 803,808,074.80
  5. Step 5: Solve for x
    x = 803,808,074.80/30,436.16
  6. Step 6: Final answer
    x = 26,409.64

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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.