Home / 26,955.40-40,434.30-9,185.80

Finding the Fourth Proportional to 26,955.40, 40,434.30 and 9,185.80

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Solution

The fourth proportional to 26,955.40, 40,434.30 and 9,185.80 is: 13,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,955.40 : 40,434.30 = 9,185.80 : x
  2. Step 2: Convert to fraction form
    26,955.40/40,434.30 = 9,185.80/x
  3. Step 3: Cross multiply
    26,955.40x = 40,434.30 × 9,185.80
  4. Step 4: Simplify right side
    26,955.40x = 371,421,392.94
  5. Step 5: Solve for x
    x = 371,421,392.94/26,955.40
  6. Step 6: Final answer
    x = 13,779.11

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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.