Home / 38,440.34-53,047.72-21,445.68

Finding the Fourth Proportional to 38,440.34, 53,047.72 and 21,445.68

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Solution

The fourth proportional to 38,440.34, 53,047.72 and 21,445.68 is: 29,595.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,440.34 : 53,047.72 = 21,445.68 : x
  2. Step 2: Convert to fraction form
    38,440.34/53,047.72 = 21,445.68/x
  3. Step 3: Cross multiply
    38,440.34x = 53,047.72 × 21,445.68
  4. Step 4: Simplify right side
    38,440.34x = 1,137,644,427.85
  5. Step 5: Solve for x
    x = 1,137,644,427.85/38,440.34
  6. Step 6: Final answer
    x = 29,595.07

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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.