Home / 21,848.18-30,162.93-14,417.78

Finding the Fourth Proportional to 21,848.18, 30,162.93 and 14,417.78

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Solution

The fourth proportional to 21,848.18, 30,162.93 and 14,417.78 is: 19,904.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,848.18 : 30,162.93 = 14,417.78 : x
  2. Step 2: Convert to fraction form
    21,848.18/30,162.93 = 14,417.78/x
  3. Step 3: Cross multiply
    21,848.18x = 30,162.93 × 14,417.78
  4. Step 4: Simplify right side
    21,848.18x = 434,882,488.90
  5. Step 5: Solve for x
    x = 434,882,488.90/21,848.18
  6. Step 6: Final answer
    x = 19,904.75

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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.