Home / 28,645.40-42,966.12-8,922.08

Finding the Fourth Proportional to 28,645.40, 42,966.12 and 8,922.08

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Solution

The fourth proportional to 28,645.40, 42,966.12 and 8,922.08 is: 13,382.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,645.40 : 42,966.12 = 8,922.08 : x
  2. Step 2: Convert to fraction form
    28,645.40/42,966.12 = 8,922.08/x
  3. Step 3: Cross multiply
    28,645.40x = 42,966.12 × 8,922.08
  4. Step 4: Simplify right side
    28,645.40x = 383,347,159.93
  5. Step 5: Solve for x
    x = 383,347,159.93/28,645.40
  6. Step 6: Final answer
    x = 13,382.50

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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.