Home / 42,666.19-64,000.20-13,083.37

Finding the Fourth Proportional to 42,666.19, 64,000.20 and 13,083.37

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Solution

The fourth proportional to 42,666.19, 64,000.20 and 13,083.37 is: 19,625.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,666.19 : 64,000.20 = 13,083.37 : x
  2. Step 2: Convert to fraction form
    42,666.19/64,000.20 = 13,083.37/x
  3. Step 3: Cross multiply
    42,666.19x = 64,000.20 × 13,083.37
  4. Step 4: Simplify right side
    42,666.19x = 837,337,976.67
  5. Step 5: Solve for x
    x = 837,337,976.67/42,666.19
  6. Step 6: Final answer
    x = 19,625.33

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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.