Home / 26,317.50-36,319.26-15,139.50

Finding the Fourth Proportional to 26,317.50, 36,319.26 and 15,139.50

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Solution

The fourth proportional to 26,317.50, 36,319.26 and 15,139.50 is: 20,893.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,317.50 : 36,319.26 = 15,139.50 : x
  2. Step 2: Convert to fraction form
    26,317.50/36,319.26 = 15,139.50/x
  3. Step 3: Cross multiply
    26,317.50x = 36,319.26 × 15,139.50
  4. Step 4: Simplify right side
    26,317.50x = 549,855,436.77
  5. Step 5: Solve for x
    x = 549,855,436.77/26,317.50
  6. Step 6: Final answer
    x = 20,893.15

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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.