Home / 42,930.75-64,385.26-19,225.03

Finding the Fourth Proportional to 42,930.75, 64,385.26 and 19,225.03

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Solution

The fourth proportional to 42,930.75, 64,385.26 and 19,225.03 is: 28,832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,930.75 : 64,385.26 = 19,225.03 : x
  2. Step 2: Convert to fraction form
    42,930.75/64,385.26 = 19,225.03/x
  3. Step 3: Cross multiply
    42,930.75x = 64,385.26 × 19,225.03
  4. Step 4: Simplify right side
    42,930.75x = 1,237,808,555.06
  5. Step 5: Solve for x
    x = 1,237,808,555.06/42,930.75
  6. Step 6: Final answer
    x = 28,832.68

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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.