Home / 28,411.01-42,618.20-8,690.93

Finding the Fourth Proportional to 28,411.01, 42,618.20 and 8,690.93

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Solution

The fourth proportional to 28,411.01, 42,618.20 and 8,690.93 is: 13,036.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,411.01 : 42,618.20 = 8,690.93 : x
  2. Step 2: Convert to fraction form
    28,411.01/42,618.20 = 8,690.93/x
  3. Step 3: Cross multiply
    28,411.01x = 42,618.20 × 8,690.93
  4. Step 4: Simplify right side
    28,411.01x = 370,391,792.93
  5. Step 5: Solve for x
    x = 370,391,792.93/28,411.01
  6. Step 6: Final answer
    x = 13,036.91

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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.