Home / 38,434.02-53,038.97-20,770.02

Finding the Fourth Proportional to 38,434.02, 53,038.97 and 20,770.02

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Solution

The fourth proportional to 38,434.02, 53,038.97 and 20,770.02 is: 28,662.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,434.02 : 53,038.97 = 20,770.02 : x
  2. Step 2: Convert to fraction form
    38,434.02/53,038.97 = 20,770.02/x
  3. Step 3: Cross multiply
    38,434.02x = 53,038.97 × 20,770.02
  4. Step 4: Simplify right side
    38,434.02x = 1,101,620,467.68
  5. Step 5: Solve for x
    x = 1,101,620,467.68/38,434.02
  6. Step 6: Final answer
    x = 28,662.64

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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.