Home / 14,478.30-21,720.02-4,616.55

Finding the Fourth Proportional to 14,478.30, 21,720.02 and 4,616.55

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Solution

The fourth proportional to 14,478.30, 21,720.02 and 4,616.55 is: 6,925.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478.30 : 21,720.02 = 4,616.55 : x
  2. Step 2: Convert to fraction form
    14,478.30/21,720.02 = 4,616.55/x
  3. Step 3: Cross multiply
    14,478.30x = 21,720.02 × 4,616.55
  4. Step 4: Simplify right side
    14,478.30x = 100,271,535.25
  5. Step 5: Solve for x
    x = 100,271,535.25/14,478.30
  6. Step 6: Final answer
    x = 6,925.64

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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.