Home / 21,852.41-30,156.02-12,291.58

Finding the Fourth Proportional to 21,852.41, 30,156.02 and 12,291.58

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Solution

The fourth proportional to 21,852.41, 30,156.02 and 12,291.58 is: 16,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,852.41 : 30,156.02 = 12,291.58 : x
  2. Step 2: Convert to fraction form
    21,852.41/30,156.02 = 12,291.58/x
  3. Step 3: Cross multiply
    21,852.41x = 30,156.02 × 12,291.58
  4. Step 4: Simplify right side
    21,852.41x = 370,664,981.53
  5. Step 5: Solve for x
    x = 370,664,981.53/21,852.41
  6. Step 6: Final answer
    x = 16,962.20

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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.