Home / 19,923.74-27,497.40-12,870.68

Finding the Fourth Proportional to 19,923.74, 27,497.40 and 12,870.68

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Solution

The fourth proportional to 19,923.74, 27,497.40 and 12,870.68 is: 17,763.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,923.74 : 27,497.40 = 12,870.68 : x
  2. Step 2: Convert to fraction form
    19,923.74/27,497.40 = 12,870.68/x
  3. Step 3: Cross multiply
    19,923.74x = 27,497.40 × 12,870.68
  4. Step 4: Simplify right side
    19,923.74x = 353,910,236.23
  5. Step 5: Solve for x
    x = 353,910,236.23/19,923.74
  6. Step 6: Final answer
    x = 17,763.24

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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.