Home / 26,605.81-36,677.86-20,930.70

Finding the Fourth Proportional to 26,605.81, 36,677.86 and 20,930.70

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Solution

The fourth proportional to 26,605.81, 36,677.86 and 20,930.70 is: 28,854.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,605.81 : 36,677.86 = 20,930.70 : x
  2. Step 2: Convert to fraction form
    26,605.81/36,677.86 = 20,930.70/x
  3. Step 3: Cross multiply
    26,605.81x = 36,677.86 × 20,930.70
  4. Step 4: Simplify right side
    26,605.81x = 767,693,186.01
  5. Step 5: Solve for x
    x = 767,693,186.01/26,605.81
  6. Step 6: Final answer
    x = 28,854.35

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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.