Home / 36,981.38-51,034.65-21,065.60

Finding the Fourth Proportional to 36,981.38, 51,034.65 and 21,065.60

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Solution

The fourth proportional to 36,981.38, 51,034.65 and 21,065.60 is: 29,070.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,981.38 : 51,034.65 = 21,065.60 : x
  2. Step 2: Convert to fraction form
    36,981.38/51,034.65 = 21,065.60/x
  3. Step 3: Cross multiply
    36,981.38x = 51,034.65 × 21,065.60
  4. Step 4: Simplify right side
    36,981.38x = 1,075,075,523.04
  5. Step 5: Solve for x
    x = 1,075,075,523.04/36,981.38
  6. Step 6: Final answer
    x = 29,070.72

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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.