Home / 30,477.88-42,062.64-17,557.60

Finding the Fourth Proportional to 30,477.88, 42,062.64 and 17,557.60

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Solution

The fourth proportional to 30,477.88, 42,062.64 and 17,557.60 is: 24,231.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,477.88 : 42,062.64 = 17,557.60 : x
  2. Step 2: Convert to fraction form
    30,477.88/42,062.64 = 17,557.60/x
  3. Step 3: Cross multiply
    30,477.88x = 42,062.64 × 17,557.60
  4. Step 4: Simplify right side
    30,477.88x = 738,519,008.06
  5. Step 5: Solve for x
    x = 738,519,008.06/30,477.88
  6. Step 6: Final answer
    x = 24,231.31

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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.