Home / 28,206.18-42,307.95-11,562.12

Finding the Fourth Proportional to 28,206.18, 42,307.95 and 11,562.12

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Solution

The fourth proportional to 28,206.18, 42,307.95 and 11,562.12 is: 17,342.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.18 : 42,307.95 = 11,562.12 : x
  2. Step 2: Convert to fraction form
    28,206.18/42,307.95 = 11,562.12/x
  3. Step 3: Cross multiply
    28,206.18x = 42,307.95 × 11,562.12
  4. Step 4: Simplify right side
    28,206.18x = 489,169,594.85
  5. Step 5: Solve for x
    x = 489,169,594.85/28,206.18
  6. Step 6: Final answer
    x = 17,342.64

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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.