Home / 17,780.31-26,670.47-5,300.29

Finding the Fourth Proportional to 17,780.31, 26,670.47 and 5,300.29

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Solution

The fourth proportional to 17,780.31, 26,670.47 and 5,300.29 is: 7,950.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,780.31 : 26,670.47 = 5,300.29 : x
  2. Step 2: Convert to fraction form
    17,780.31/26,670.47 = 5,300.29/x
  3. Step 3: Cross multiply
    17,780.31x = 26,670.47 × 5,300.29
  4. Step 4: Simplify right side
    17,780.31x = 141,361,082.25
  5. Step 5: Solve for x
    x = 141,361,082.25/17,780.31
  6. Step 6: Final answer
    x = 7,950.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.