Home / 21,176.70-31,777.65-8,030.40

Finding the Fourth Proportional to 21,176.70, 31,777.65 and 8,030.40

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Solution

The fourth proportional to 21,176.70, 31,777.65 and 8,030.40 is: 12,050.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.70 : 31,777.65 = 8,030.40 : x
  2. Step 2: Convert to fraction form
    21,176.70/31,777.65 = 8,030.40/x
  3. Step 3: Cross multiply
    21,176.70x = 31,777.65 × 8,030.40
  4. Step 4: Simplify right side
    21,176.70x = 255,187,240.56
  5. Step 5: Solve for x
    x = 255,187,240.56/21,176.70
  6. Step 6: Final answer
    x = 12,050.38

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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.