Home / 38,423.88-53,034.67-21,666.60

Finding the Fourth Proportional to 38,423.88, 53,034.67 and 21,666.60

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Solution

The fourth proportional to 38,423.88, 53,034.67 and 21,666.60 is: 29,905.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,423.88 : 53,034.67 = 21,666.60 : x
  2. Step 2: Convert to fraction form
    38,423.88/53,034.67 = 21,666.60/x
  3. Step 3: Cross multiply
    38,423.88x = 53,034.67 × 21,666.60
  4. Step 4: Simplify right side
    38,423.88x = 1,149,080,981.02
  5. Step 5: Solve for x
    x = 1,149,080,981.02/38,423.88
  6. Step 6: Final answer
    x = 29,905.39

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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.