Home / 43,776.34-65,666.76-21,307.71

Finding the Fourth Proportional to 43,776.34, 65,666.76 and 21,307.71

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Solution

The fourth proportional to 43,776.34, 65,666.76 and 21,307.71 is: 31,962.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,776.34 : 65,666.76 = 21,307.71 : x
  2. Step 2: Convert to fraction form
    43,776.34/65,666.76 = 21,307.71/x
  3. Step 3: Cross multiply
    43,776.34x = 65,666.76 × 21,307.71
  4. Step 4: Simplify right side
    43,776.34x = 1,399,208,278.72
  5. Step 5: Solve for x
    x = 1,399,208,278.72/43,776.34
  6. Step 6: Final answer
    x = 31,962.66

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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.