Home / 28,985.20-43,506.60-14,210.80

Finding the Fourth Proportional to 28,985.20, 43,506.60 and 14,210.80

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Solution

The fourth proportional to 28,985.20, 43,506.60 and 14,210.80 is: 21,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.20 : 43,506.60 = 14,210.80 : x
  2. Step 2: Convert to fraction form
    28,985.20/43,506.60 = 14,210.80/x
  3. Step 3: Cross multiply
    28,985.20x = 43,506.60 × 14,210.80
  4. Step 4: Simplify right side
    28,985.20x = 618,263,591.28
  5. Step 5: Solve for x
    x = 618,263,591.28/28,985.20
  6. Step 6: Final answer
    x = 21,330.32

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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.