Home / 26,567.18-39,866.57-13,420.88

Finding the Fourth Proportional to 26,567.18, 39,866.57 and 13,420.88

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Solution

The fourth proportional to 26,567.18, 39,866.57 and 13,420.88 is: 20,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,567.18 : 39,866.57 = 13,420.88 : x
  2. Step 2: Convert to fraction form
    26,567.18/39,866.57 = 13,420.88/x
  3. Step 3: Cross multiply
    26,567.18x = 39,866.57 × 13,420.88
  4. Step 4: Simplify right side
    26,567.18x = 535,044,451.98
  5. Step 5: Solve for x
    x = 535,044,451.98/26,567.18
  6. Step 6: Final answer
    x = 20,139.30

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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.