Home / 26,436.32-36,520.08-21,124.16

Finding the Fourth Proportional to 26,436.32, 36,520.08 and 21,124.16

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Solution

The fourth proportional to 26,436.32, 36,520.08 and 21,124.16 is: 29,181.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,436.32 : 36,520.08 = 21,124.16 : x
  2. Step 2: Convert to fraction form
    26,436.32/36,520.08 = 21,124.16/x
  3. Step 3: Cross multiply
    26,436.32x = 36,520.08 × 21,124.16
  4. Step 4: Simplify right side
    26,436.32x = 771,456,013.13
  5. Step 5: Solve for x
    x = 771,456,013.13/26,436.32
  6. Step 6: Final answer
    x = 29,181.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.