Home / 21,970.53-32,977.67-12,114.45

Finding the Fourth Proportional to 21,970.53, 32,977.67 and 12,114.45

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Solution

The fourth proportional to 21,970.53, 32,977.67 and 12,114.45 is: 18,183.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,970.53 : 32,977.67 = 12,114.45 : x
  2. Step 2: Convert to fraction form
    21,970.53/32,977.67 = 12,114.45/x
  3. Step 3: Cross multiply
    21,970.53x = 32,977.67 × 12,114.45
  4. Step 4: Simplify right side
    21,970.53x = 399,506,334.33
  5. Step 5: Solve for x
    x = 399,506,334.33/21,970.53
  6. Step 6: Final answer
    x = 18,183.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.