Home / 26,460.19-39,690.26-20,621.17

Finding the Fourth Proportional to 26,460.19, 39,690.26 and 20,621.17

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Solution

The fourth proportional to 26,460.19, 39,690.26 and 20,621.17 is: 30,931.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,460.19 : 39,690.26 = 20,621.17 : x
  2. Step 2: Convert to fraction form
    26,460.19/39,690.26 = 20,621.17/x
  3. Step 3: Cross multiply
    26,460.19x = 39,690.26 × 20,621.17
  4. Step 4: Simplify right side
    26,460.19x = 818,459,495.70
  5. Step 5: Solve for x
    x = 818,459,495.70/26,460.19
  6. Step 6: Final answer
    x = 30,931.73

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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.