Home / 47,509.04-71,274.65-13,775.77

Finding the Fourth Proportional to 47,509.04, 71,274.65 and 13,775.77

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Solution

The fourth proportional to 47,509.04, 71,274.65 and 13,775.77 is: 20,666.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,509.04 : 71,274.65 = 13,775.77 : x
  2. Step 2: Convert to fraction form
    47,509.04/71,274.65 = 13,775.77/x
  3. Step 3: Cross multiply
    47,509.04x = 71,274.65 × 13,775.77
  4. Step 4: Simplify right side
    47,509.04x = 981,862,828.86
  5. Step 5: Solve for x
    x = 981,862,828.86/47,509.04
  6. Step 6: Final answer
    x = 20,666.86

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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.