Home / 26,937.80-40,406.70-7,219.40

Finding the Fourth Proportional to 26,937.80, 40,406.70 and 7,219.40

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Solution

The fourth proportional to 26,937.80, 40,406.70 and 7,219.40 is: 10,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,937.80 : 40,406.70 = 7,219.40 : x
  2. Step 2: Convert to fraction form
    26,937.80/40,406.70 = 7,219.40/x
  3. Step 3: Cross multiply
    26,937.80x = 40,406.70 × 7,219.40
  4. Step 4: Simplify right side
    26,937.80x = 291,712,129.98
  5. Step 5: Solve for x
    x = 291,712,129.98/26,937.80
  6. Step 6: Final answer
    x = 10,829.10

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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.