Home / 38,461.84-53,080.31-21,237.57

Finding the Fourth Proportional to 38,461.84, 53,080.31 and 21,237.57

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Solution

The fourth proportional to 38,461.84, 53,080.31 and 21,237.57 is: 29,309.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,461.84 : 53,080.31 = 21,237.57 : x
  2. Step 2: Convert to fraction form
    38,461.84/53,080.31 = 21,237.57/x
  3. Step 3: Cross multiply
    38,461.84x = 53,080.31 × 21,237.57
  4. Step 4: Simplify right side
    38,461.84x = 1,127,296,703.05
  5. Step 5: Solve for x
    x = 1,127,296,703.05/38,461.84
  6. Step 6: Final answer
    x = 29,309.49

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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.