Home / 22,779.49-31,433.52-12,707.14

Finding the Fourth Proportional to 22,779.49, 31,433.52 and 12,707.14

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Solution

The fourth proportional to 22,779.49, 31,433.52 and 12,707.14 is: 17,534.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.49 : 31,433.52 = 12,707.14 : x
  2. Step 2: Convert to fraction form
    22,779.49/31,433.52 = 12,707.14/x
  3. Step 3: Cross multiply
    22,779.49x = 31,433.52 × 12,707.14
  4. Step 4: Simplify right side
    22,779.49x = 399,430,139.33
  5. Step 5: Solve for x
    x = 399,430,139.33/22,779.49
  6. Step 6: Final answer
    x = 17,534.64

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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.