Home / 26,306.76-36,304.40-15,128.76

Finding the Fourth Proportional to 26,306.76, 36,304.40 and 15,128.76

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Solution

The fourth proportional to 26,306.76, 36,304.40 and 15,128.76 is: 20,878.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,306.76 : 36,304.40 = 15,128.76 : x
  2. Step 2: Convert to fraction form
    26,306.76/36,304.40 = 15,128.76/x
  3. Step 3: Cross multiply
    26,306.76x = 36,304.40 × 15,128.76
  4. Step 4: Simplify right side
    26,306.76x = 549,240,554.54
  5. Step 5: Solve for x
    x = 549,240,554.54/26,306.76
  6. Step 6: Final answer
    x = 20,878.30

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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.