Home / 30,804.60-42,510.39-16,657.47

Finding the Fourth Proportional to 30,804.60, 42,510.39 and 16,657.47

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Solution

The fourth proportional to 30,804.60, 42,510.39 and 16,657.47 is: 22,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,804.60 : 42,510.39 = 16,657.47 : x
  2. Step 2: Convert to fraction form
    30,804.60/42,510.39 = 16,657.47/x
  3. Step 3: Cross multiply
    30,804.60x = 42,510.39 × 16,657.47
  4. Step 4: Simplify right side
    30,804.60x = 708,115,546.11
  5. Step 5: Solve for x
    x = 708,115,546.11/30,804.60
  6. Step 6: Final answer
    x = 22,987.33

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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.