Home / 30,804.21-42,509.60-16,657.06

Finding the Fourth Proportional to 30,804.21, 42,509.60 and 16,657.06

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Solution

The fourth proportional to 30,804.21, 42,509.60 and 16,657.06 is: 22,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,804.21 : 42,509.60 = 16,657.06 : x
  2. Step 2: Convert to fraction form
    30,804.21/42,509.60 = 16,657.06/x
  3. Step 3: Cross multiply
    30,804.21x = 42,509.60 × 16,657.06
  4. Step 4: Simplify right side
    30,804.21x = 708,084,957.78
  5. Step 5: Solve for x
    x = 708,084,957.78/30,804.21
  6. Step 6: Final answer
    x = 22,986.63

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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.