Home / 34,703.68-47,890.20-19,390.35

Finding the Fourth Proportional to 34,703.68, 47,890.20 and 19,390.35

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Solution

The fourth proportional to 34,703.68, 47,890.20 and 19,390.35 is: 26,758.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,703.68 : 47,890.20 = 19,390.35 : x
  2. Step 2: Convert to fraction form
    34,703.68/47,890.20 = 19,390.35/x
  3. Step 3: Cross multiply
    34,703.68x = 47,890.20 × 19,390.35
  4. Step 4: Simplify right side
    34,703.68x = 928,607,739.57
  5. Step 5: Solve for x
    x = 928,607,739.57/34,703.68
  6. Step 6: Final answer
    x = 26,758.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.