Home / 14,285.28-21,430.53-4,423.89

Finding the Fourth Proportional to 14,285.28, 21,430.53 and 4,423.89

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Solution

The fourth proportional to 14,285.28, 21,430.53 and 4,423.89 is: 6,636.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285.28 : 21,430.53 = 4,423.89 : x
  2. Step 2: Convert to fraction form
    14,285.28/21,430.53 = 4,423.89/x
  3. Step 3: Cross multiply
    14,285.28x = 21,430.53 × 4,423.89
  4. Step 4: Simplify right side
    14,285.28x = 94,806,307.36
  5. Step 5: Solve for x
    x = 94,806,307.36/14,285.28
  6. Step 6: Final answer
    x = 6,636.64

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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.