Home / 42,930.50-64,406.68-13,348.58

Finding the Fourth Proportional to 42,930.50, 64,406.68 and 13,348.58

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Solution

The fourth proportional to 42,930.50, 64,406.68 and 13,348.58 is: 20,026.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,930.50 : 64,406.68 = 13,348.58 : x
  2. Step 2: Convert to fraction form
    42,930.50/64,406.68 = 13,348.58/x
  3. Step 3: Cross multiply
    42,930.50x = 64,406.68 × 13,348.58
  4. Step 4: Simplify right side
    42,930.50x = 859,737,365.11
  5. Step 5: Solve for x
    x = 859,737,365.11/42,930.50
  6. Step 6: Final answer
    x = 20,026.26

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1.5x scale

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.