Home / 26,320.69-36,319.37-14,990.21

Finding the Fourth Proportional to 26,320.69, 36,319.37 and 14,990.21

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Solution

The fourth proportional to 26,320.69, 36,319.37 and 14,990.21 is: 20,684.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,320.69 : 36,319.37 = 14,990.21 : x
  2. Step 2: Convert to fraction form
    26,320.69/36,319.37 = 14,990.21/x
  3. Step 3: Cross multiply
    26,320.69x = 36,319.37 × 14,990.21
  4. Step 4: Simplify right side
    26,320.69x = 544,434,983.37
  5. Step 5: Solve for x
    x = 544,434,983.37/26,320.69
  6. Step 6: Final answer
    x = 20,684.68

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Half scale
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Double scale
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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.