Home / 26,139.06-36,072.48-15,528.72

Finding the Fourth Proportional to 26,139.06, 36,072.48 and 15,528.72

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Solution

The fourth proportional to 26,139.06, 36,072.48 and 15,528.72 is: 21,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,139.06 : 36,072.48 = 15,528.72 : x
  2. Step 2: Convert to fraction form
    26,139.06/36,072.48 = 15,528.72/x
  3. Step 3: Cross multiply
    26,139.06x = 36,072.48 × 15,528.72
  4. Step 4: Simplify right side
    26,139.06x = 560,159,441.63
  5. Step 5: Solve for x
    x = 560,159,441.63/26,139.06
  6. Step 6: Final answer
    x = 21,429.98

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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.