Home / 27,113.78-40,669.38-11,312.30

Finding the Fourth Proportional to 27,113.78, 40,669.38 and 11,312.30

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Solution

The fourth proportional to 27,113.78, 40,669.38 and 11,312.30 is: 16,967.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,113.78 : 40,669.38 = 11,312.30 : x
  2. Step 2: Convert to fraction form
    27,113.78/40,669.38 = 11,312.30/x
  3. Step 3: Cross multiply
    27,113.78x = 40,669.38 × 11,312.30
  4. Step 4: Simplify right side
    27,113.78x = 460,064,227.37
  5. Step 5: Solve for x
    x = 460,064,227.37/27,113.78
  6. Step 6: Final answer
    x = 16,967.91

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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.