Home / 36,990.05-51,041.18-21,071.43

Finding the Fourth Proportional to 36,990.05, 51,041.18 and 21,071.43

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Solution

The fourth proportional to 36,990.05, 51,041.18 and 21,071.43 is: 29,075.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,990.05 : 51,041.18 = 21,071.43 : x
  2. Step 2: Convert to fraction form
    36,990.05/51,041.18 = 21,071.43/x
  3. Step 3: Cross multiply
    36,990.05x = 51,041.18 × 21,071.43
  4. Step 4: Simplify right side
    36,990.05x = 1,075,510,546.13
  5. Step 5: Solve for x
    x = 1,075,510,546.13/36,990.05
  6. Step 6: Final answer
    x = 29,075.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.