Home / 30,890.26-42,596.73-26,428.78

Finding the Fourth Proportional to 30,890.26, 42,596.73 and 26,428.78

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Solution

The fourth proportional to 30,890.26, 42,596.73 and 26,428.78 is: 36,444.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,890.26 : 42,596.73 = 26,428.78 : x
  2. Step 2: Convert to fraction form
    30,890.26/42,596.73 = 26,428.78/x
  3. Step 3: Cross multiply
    30,890.26x = 42,596.73 × 26,428.78
  4. Step 4: Simplify right side
    30,890.26x = 1,125,779,605.89
  5. Step 5: Solve for x
    x = 1,125,779,605.89/30,890.26
  6. Step 6: Final answer
    x = 36,444.48

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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.