Home / 42,785.44-64,186.71-13,202.16

Finding the Fourth Proportional to 42,785.44, 64,186.71 and 13,202.16

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Solution

The fourth proportional to 42,785.44, 64,186.71 and 13,202.16 is: 19,805.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,785.44 : 64,186.71 = 13,202.16 : x
  2. Step 2: Convert to fraction form
    42,785.44/64,186.71 = 13,202.16/x
  3. Step 3: Cross multiply
    42,785.44x = 64,186.71 × 13,202.16
  4. Step 4: Simplify right side
    42,785.44x = 847,402,828.35
  5. Step 5: Solve for x
    x = 847,402,828.35/42,785.44
  6. Step 6: Final answer
    x = 19,805.87

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1.5x scale

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.