Home / 30,455.94-42,055.02-25,446.90

Finding the Fourth Proportional to 30,455.94, 42,055.02 and 25,446.90

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Solution

The fourth proportional to 30,455.94, 42,055.02 and 25,446.90 is: 35,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.94 : 42,055.02 = 25,446.90 : x
  2. Step 2: Convert to fraction form
    30,455.94/42,055.02 = 25,446.90/x
  3. Step 3: Cross multiply
    30,455.94x = 42,055.02 × 25,446.90
  4. Step 4: Simplify right side
    30,455.94x = 1,070,169,888.44
  5. Step 5: Solve for x
    x = 1,070,169,888.44/30,455.94
  6. Step 6: Final answer
    x = 35,138.30

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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.