Home / 21,779.14-30,050.63-14,236.57

Finding the Fourth Proportional to 21,779.14, 30,050.63 and 14,236.57

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Solution

The fourth proportional to 21,779.14, 30,050.63 and 14,236.57 is: 19,643.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779.14 : 30,050.63 = 14,236.57 : x
  2. Step 2: Convert to fraction form
    21,779.14/30,050.63 = 14,236.57/x
  3. Step 3: Cross multiply
    21,779.14x = 30,050.63 × 14,236.57
  4. Step 4: Simplify right side
    21,779.14x = 427,818,019.63
  5. Step 5: Solve for x
    x = 427,818,019.63/21,779.14
  6. Step 6: Final answer
    x = 19,643.48

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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.