Home / 47,021.28-64,884.64-28,157.92

Finding the Fourth Proportional to 47,021.28, 64,884.64 and 28,157.92

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Solution

The fourth proportional to 47,021.28, 64,884.64 and 28,157.92 is: 38,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,021.28 : 64,884.64 = 28,157.92 : x
  2. Step 2: Convert to fraction form
    47,021.28/64,884.64 = 28,157.92/x
  3. Step 3: Cross multiply
    47,021.28x = 64,884.64 × 28,157.92
  4. Step 4: Simplify right side
    47,021.28x = 1,827,016,502.35
  5. Step 5: Solve for x
    x = 1,827,016,502.35/47,021.28
  6. Step 6: Final answer
    x = 38,855.10

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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.