Home / 27,026.10-40,485.42-21,155.22

Finding the Fourth Proportional to 27,026.10, 40,485.42 and 21,155.22

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Solution

The fourth proportional to 27,026.10, 40,485.42 and 21,155.22 is: 31,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,026.10 : 40,485.42 = 21,155.22 : x
  2. Step 2: Convert to fraction form
    27,026.10/40,485.42 = 21,155.22/x
  3. Step 3: Cross multiply
    27,026.10x = 40,485.42 × 21,155.22
  4. Step 4: Simplify right side
    27,026.10x = 856,477,966.89
  5. Step 5: Solve for x
    x = 856,477,966.89/27,026.10
  6. Step 6: Final answer
    x = 31,690.77

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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.