Home / 26,639.88-36,767.70-15,312.84

Finding the Fourth Proportional to 26,639.88, 36,767.70 and 15,312.84

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Solution

The fourth proportional to 26,639.88, 36,767.70 and 15,312.84 is: 21,134.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,639.88 : 36,767.70 = 15,312.84 : x
  2. Step 2: Convert to fraction form
    26,639.88/36,767.70 = 15,312.84/x
  3. Step 3: Cross multiply
    26,639.88x = 36,767.70 × 15,312.84
  4. Step 4: Simplify right side
    26,639.88x = 563,017,907.27
  5. Step 5: Solve for x
    x = 563,017,907.27/26,639.88
  6. Step 6: Final answer
    x = 21,134.40

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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.