Home / 43,870.22-65,814.21-14,280.11

Finding the Fourth Proportional to 43,870.22, 65,814.21 and 14,280.11

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Solution

The fourth proportional to 43,870.22, 65,814.21 and 14,280.11 is: 21,423.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,870.22 : 65,814.21 = 14,280.11 : x
  2. Step 2: Convert to fraction form
    43,870.22/65,814.21 = 14,280.11/x
  3. Step 3: Cross multiply
    43,870.22x = 65,814.21 × 14,280.11
  4. Step 4: Simplify right side
    43,870.22x = 939,834,158.36
  5. Step 5: Solve for x
    x = 939,834,158.36/43,870.22
  6. Step 6: Final answer
    x = 21,423.06

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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.