Home / 26,990.15-40,485.65-9,459.90

Finding the Fourth Proportional to 26,990.15, 40,485.65 and 9,459.90

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Solution

The fourth proportional to 26,990.15, 40,485.65 and 9,459.90 is: 14,190.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,990.15 : 40,485.65 = 9,459.90 : x
  2. Step 2: Convert to fraction form
    26,990.15/40,485.65 = 9,459.90/x
  3. Step 3: Cross multiply
    26,990.15x = 40,485.65 × 9,459.90
  4. Step 4: Simplify right side
    26,990.15x = 382,990,153.14
  5. Step 5: Solve for x
    x = 382,990,153.14/26,990.15
  6. Step 6: Final answer
    x = 14,190.00

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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.