Home / 28,582.35-42,868.67-7,800.99

Finding the Fourth Proportional to 28,582.35, 42,868.67 and 7,800.99

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Solution

The fourth proportional to 28,582.35, 42,868.67 and 7,800.99 is: 11,700.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,582.35 : 42,868.67 = 7,800.99 : x
  2. Step 2: Convert to fraction form
    28,582.35/42,868.67 = 7,800.99/x
  3. Step 3: Cross multiply
    28,582.35x = 42,868.67 × 7,800.99
  4. Step 4: Simplify right side
    28,582.35x = 334,418,026.98
  5. Step 5: Solve for x
    x = 334,418,026.98/28,582.35
  6. Step 6: Final answer
    x = 11,700.16

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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.