Home / 36,981.58-51,034.55-19,985.81

Finding the Fourth Proportional to 36,981.58, 51,034.55 and 19,985.81

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Solution

The fourth proportional to 36,981.58, 51,034.55 and 19,985.81 is: 27,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,981.58 : 51,034.55 = 19,985.81 : x
  2. Step 2: Convert to fraction form
    36,981.58/51,034.55 = 19,985.81/x
  3. Step 3: Cross multiply
    36,981.58x = 51,034.55 × 19,985.81
  4. Step 4: Simplify right side
    36,981.58x = 1,019,966,819.74
  5. Step 5: Solve for x
    x = 1,019,966,819.74/36,981.58
  6. Step 6: Final answer
    x = 27,580.40

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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.