Home / 30,206.90-41,685.93-16,779.02

Finding the Fourth Proportional to 30,206.90, 41,685.93 and 16,779.02

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Solution

The fourth proportional to 30,206.90, 41,685.93 and 16,779.02 is: 23,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,206.90 : 41,685.93 = 16,779.02 : x
  2. Step 2: Convert to fraction form
    30,206.90/41,685.93 = 16,779.02/x
  3. Step 3: Cross multiply
    30,206.90x = 41,685.93 × 16,779.02
  4. Step 4: Simplify right side
    30,206.90x = 699,449,053.19
  5. Step 5: Solve for x
    x = 699,449,053.19/30,206.90
  6. Step 6: Final answer
    x = 23,155.27

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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.