Home / 21,779.96-30,059.70-12,346.52

Finding the Fourth Proportional to 21,779.96, 30,059.70 and 12,346.52

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Solution

The fourth proportional to 21,779.96, 30,059.70 and 12,346.52 is: 17,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779.96 : 30,059.70 = 12,346.52 : x
  2. Step 2: Convert to fraction form
    21,779.96/30,059.70 = 12,346.52/x
  3. Step 3: Cross multiply
    21,779.96x = 30,059.70 × 12,346.52
  4. Step 4: Simplify right side
    21,779.96x = 371,132,687.24
  5. Step 5: Solve for x
    x = 371,132,687.24/21,779.96
  6. Step 6: Final answer
    x = 17,040.10

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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.