Home / 21,823.89-30,117.03-12,392.46

Finding the Fourth Proportional to 21,823.89, 30,117.03 and 12,392.46

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Solution

The fourth proportional to 21,823.89, 30,117.03 and 12,392.46 is: 17,101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,823.89 : 30,117.03 = 12,392.46 : x
  2. Step 2: Convert to fraction form
    21,823.89/30,117.03 = 12,392.46/x
  3. Step 3: Cross multiply
    21,823.89x = 30,117.03 × 12,392.46
  4. Step 4: Simplify right side
    21,823.89x = 373,224,089.59
  5. Step 5: Solve for x
    x = 373,224,089.59/21,823.89
  6. Step 6: Final answer
    x = 17,101.63

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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.