Home / 26,259.30-39,356.10-13,115.34

Finding the Fourth Proportional to 26,259.30, 39,356.10 and 13,115.34

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Solution

The fourth proportional to 26,259.30, 39,356.10 and 13,115.34 is: 19,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,259.30 : 39,356.10 = 13,115.34 : x
  2. Step 2: Convert to fraction form
    26,259.30/39,356.10 = 13,115.34/x
  3. Step 3: Cross multiply
    26,259.30x = 39,356.10 × 13,115.34
  4. Step 4: Simplify right side
    26,259.30x = 516,168,632.57
  5. Step 5: Solve for x
    x = 516,168,632.57/26,259.30
  6. Step 6: Final answer
    x = 19,656.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.