Home / 47,021.50-64,892.10-28,169.56

Finding the Fourth Proportional to 47,021.50, 64,892.10 and 28,169.56

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Solution

The fourth proportional to 47,021.50, 64,892.10 and 28,169.56 is: 38,875.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,021.50 : 64,892.10 = 28,169.56 : x
  2. Step 2: Convert to fraction form
    47,021.50/64,892.10 = 28,169.56/x
  3. Step 3: Cross multiply
    47,021.50x = 64,892.10 × 28,169.56
  4. Step 4: Simplify right side
    47,021.50x = 1,827,981,904.48
  5. Step 5: Solve for x
    x = 1,827,981,904.48/47,021.50
  6. Step 6: Final answer
    x = 38,875.45

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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.