Home / 30,312.60-45,446.24-20,925.82

Finding the Fourth Proportional to 30,312.60, 45,446.24 and 20,925.82

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Solution

The fourth proportional to 30,312.60, 45,446.24 and 20,925.82 is: 31,373.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,312.60 : 45,446.24 = 20,925.82 : x
  2. Step 2: Convert to fraction form
    30,312.60/45,446.24 = 20,925.82/x
  3. Step 3: Cross multiply
    30,312.60x = 45,446.24 × 20,925.82
  4. Step 4: Simplify right side
    30,312.60x = 950,999,760.37
  5. Step 5: Solve for x
    x = 950,999,760.37/30,312.60
  6. Step 6: Final answer
    x = 31,373.08

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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.