Home / 47,005.12-64,860.96-28,138.24

Finding the Fourth Proportional to 47,005.12, 64,860.96 and 28,138.24

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Solution

The fourth proportional to 47,005.12, 64,860.96 and 28,138.24 is: 38,827.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,005.12 : 64,860.96 = 28,138.24 : x
  2. Step 2: Convert to fraction form
    47,005.12/64,860.96 = 28,138.24/x
  3. Step 3: Cross multiply
    47,005.12x = 64,860.96 × 28,138.24
  4. Step 4: Simplify right side
    47,005.12x = 1,825,073,259.11
  5. Step 5: Solve for x
    x = 1,825,073,259.11/47,005.12
  6. Step 6: Final answer
    x = 38,827.12

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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.