Home / 21,562.39-29,769.77-14,767.81

Finding the Fourth Proportional to 21,562.39, 29,769.77 and 14,767.81

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Solution

The fourth proportional to 21,562.39, 29,769.77 and 14,767.81 is: 20,388.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562.39 : 29,769.77 = 14,767.81 : x
  2. Step 2: Convert to fraction form
    21,562.39/29,769.77 = 14,767.81/x
  3. Step 3: Cross multiply
    21,562.39x = 29,769.77 × 14,767.81
  4. Step 4: Simplify right side
    21,562.39x = 439,634,307.10
  5. Step 5: Solve for x
    x = 439,634,307.10/21,562.39
  6. Step 6: Final answer
    x = 20,388.94

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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.