Home / 28,312.03-42,477.31-8,590.61

Finding the Fourth Proportional to 28,312.03, 42,477.31 and 8,590.61

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Solution

The fourth proportional to 28,312.03, 42,477.31 and 8,590.61 is: 12,888.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.03 : 42,477.31 = 8,590.61 : x
  2. Step 2: Convert to fraction form
    28,312.03/42,477.31 = 8,590.61/x
  3. Step 3: Cross multiply
    28,312.03x = 42,477.31 × 8,590.61
  4. Step 4: Simplify right side
    28,312.03x = 364,905,882.06
  5. Step 5: Solve for x
    x = 364,905,882.06/28,312.03
  6. Step 6: Final answer
    x = 12,888.72

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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.