Home / 28,256.91-42,389.48-8,537.05

Finding the Fourth Proportional to 28,256.91, 42,389.48 and 8,537.05

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Solution

The fourth proportional to 28,256.91, 42,389.48 and 8,537.05 is: 12,806.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256.91 : 42,389.48 = 8,537.05 : x
  2. Step 2: Convert to fraction form
    28,256.91/42,389.48 = 8,537.05/x
  3. Step 3: Cross multiply
    28,256.91x = 42,389.48 × 8,537.05
  4. Step 4: Simplify right side
    28,256.91x = 361,881,110.23
  5. Step 5: Solve for x
    x = 361,881,110.23/28,256.91
  6. Step 6: Final answer
    x = 12,806.82

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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.