Home / 21,779.55-32,667.39-6,984.45

Finding the Fourth Proportional to 21,779.55, 32,667.39 and 6,984.45

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Solution

The fourth proportional to 21,779.55, 32,667.39 and 6,984.45 is: 10,476.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779.55 : 32,667.39 = 6,984.45 : x
  2. Step 2: Convert to fraction form
    21,779.55/32,667.39 = 6,984.45/x
  3. Step 3: Cross multiply
    21,779.55x = 32,667.39 × 6,984.45
  4. Step 4: Simplify right side
    21,779.55x = 228,163,752.09
  5. Step 5: Solve for x
    x = 228,163,752.09/21,779.55
  6. Step 6: Final answer
    x = 10,476.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.