Home / 26,345.31-39,509.88-13,858.55

Finding the Fourth Proportional to 26,345.31, 39,509.88 and 13,858.55

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Solution

The fourth proportional to 26,345.31, 39,509.88 and 13,858.55 is: 20,783.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,345.31 : 39,509.88 = 13,858.55 : x
  2. Step 2: Convert to fraction form
    26,345.31/39,509.88 = 13,858.55/x
  3. Step 3: Cross multiply
    26,345.31x = 39,509.88 × 13,858.55
  4. Step 4: Simplify right side
    26,345.31x = 547,549,647.47
  5. Step 5: Solve for x
    x = 547,549,647.47/26,345.31
  6. Step 6: Final answer
    x = 20,783.57

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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.