Home / 14,280.39-21,422.70-4,420.53

Finding the Fourth Proportional to 14,280.39, 21,422.70 and 4,420.53

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Solution

The fourth proportional to 14,280.39, 21,422.70 and 4,420.53 is: 6,631.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.39 : 21,422.70 = 4,420.53 : x
  2. Step 2: Convert to fraction form
    14,280.39/21,422.70 = 4,420.53/x
  3. Step 3: Cross multiply
    14,280.39x = 21,422.70 × 4,420.53
  4. Step 4: Simplify right side
    14,280.39x = 94,699,688.03
  5. Step 5: Solve for x
    x = 94,699,688.03/14,280.39
  6. Step 6: Final answer
    x = 6,631.45

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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.