Home / 26,313.36-36,300.25-15,128.88

Finding the Fourth Proportional to 26,313.36, 36,300.25 and 15,128.88

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Solution

The fourth proportional to 26,313.36, 36,300.25 and 15,128.88 is: 20,870.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,313.36 : 36,300.25 = 15,128.88 : x
  2. Step 2: Convert to fraction form
    26,313.36/36,300.25 = 15,128.88/x
  3. Step 3: Cross multiply
    26,313.36x = 36,300.25 × 15,128.88
  4. Step 4: Simplify right side
    26,313.36x = 549,182,126.22
  5. Step 5: Solve for x
    x = 549,182,126.22/26,313.36
  6. Step 6: Final answer
    x = 20,870.85

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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.