Home / 26,430.81-39,624.00-12,383.43

Finding the Fourth Proportional to 26,430.81, 39,624.00 and 12,383.43

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Solution

The fourth proportional to 26,430.81, 39,624.00 and 12,383.43 is: 18,564.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,430.81 : 39,624.00 = 12,383.43 : x
  2. Step 2: Convert to fraction form
    26,430.81/39,624.00 = 12,383.43/x
  3. Step 3: Cross multiply
    26,430.81x = 39,624.00 × 12,383.43
  4. Step 4: Simplify right side
    26,430.81x = 490,681,075.59
  5. Step 5: Solve for x
    x = 490,681,075.59/26,430.81
  6. Step 6: Final answer
    x = 18,564.74

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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.