Home / 34,630.36-47,779.26-21,187.60

Finding the Fourth Proportional to 34,630.36, 47,779.26 and 21,187.60

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Solution

The fourth proportional to 34,630.36, 47,779.26 and 21,187.60 is: 29,232.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,630.36 : 47,779.26 = 21,187.60 : x
  2. Step 2: Convert to fraction form
    34,630.36/47,779.26 = 21,187.60/x
  3. Step 3: Cross multiply
    34,630.36x = 47,779.26 × 21,187.60
  4. Step 4: Simplify right side
    34,630.36x = 1,012,327,849.18
  5. Step 5: Solve for x
    x = 1,012,327,849.18/34,630.36
  6. Step 6: Final answer
    x = 29,232.38

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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.