Home / 25,739.91-38,583.54-17,420.76

Finding the Fourth Proportional to 25,739.91, 38,583.54 and 17,420.76

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Solution

The fourth proportional to 25,739.91, 38,583.54 and 17,420.76 is: 26,113.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,739.91 : 38,583.54 = 17,420.76 : x
  2. Step 2: Convert to fraction form
    25,739.91/38,583.54 = 17,420.76/x
  3. Step 3: Cross multiply
    25,739.91x = 38,583.54 × 17,420.76
  4. Step 4: Simplify right side
    25,739.91x = 672,154,590.29
  5. Step 5: Solve for x
    x = 672,154,590.29/25,739.91
  6. Step 6: Final answer
    x = 26,113.32

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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.