Home / 42,722.93-64,085.40-13,141.03

Finding the Fourth Proportional to 42,722.93, 64,085.40 and 13,141.03

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Solution

The fourth proportional to 42,722.93, 64,085.40 and 13,141.03 is: 19,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,722.93 : 64,085.40 = 13,141.03 : x
  2. Step 2: Convert to fraction form
    42,722.93/64,085.40 = 13,141.03/x
  3. Step 3: Cross multiply
    42,722.93x = 64,085.40 × 13,141.03
  4. Step 4: Simplify right side
    42,722.93x = 842,148,163.96
  5. Step 5: Solve for x
    x = 842,148,163.96/42,722.93
  6. Step 6: Final answer
    x = 19,711.85

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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.