Home / 26,966.40-40,438.80-9,427.20

Finding the Fourth Proportional to 26,966.40, 40,438.80 and 9,427.20

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Solution

The fourth proportional to 26,966.40, 40,438.80 and 9,427.20 is: 14,137.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,966.40 : 40,438.80 = 9,427.20 : x
  2. Step 2: Convert to fraction form
    26,966.40/40,438.80 = 9,427.20/x
  3. Step 3: Cross multiply
    26,966.40x = 40,438.80 × 9,427.20
  4. Step 4: Simplify right side
    26,966.40x = 381,224,655.36
  5. Step 5: Solve for x
    x = 381,224,655.36/26,966.40
  6. Step 6: Final answer
    x = 14,137.02

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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.