Home / 19,870.32-27,423.52-11,486.84

Finding the Fourth Proportional to 19,870.32, 27,423.52 and 11,486.84

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Solution

The fourth proportional to 19,870.32, 27,423.52 and 11,486.84 is: 15,853.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,870.32 : 27,423.52 = 11,486.84 : x
  2. Step 2: Convert to fraction form
    19,870.32/27,423.52 = 11,486.84/x
  3. Step 3: Cross multiply
    19,870.32x = 27,423.52 × 11,486.84
  4. Step 4: Simplify right side
    19,870.32x = 315,009,586.48
  5. Step 5: Solve for x
    x = 315,009,586.48/19,870.32
  6. Step 6: Final answer
    x = 15,853.27

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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.