Home / 34,537.17-47,661.37-20,390.93

Finding the Fourth Proportional to 34,537.17, 47,661.37 and 20,390.93

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Solution

The fourth proportional to 34,537.17, 47,661.37 and 20,390.93 is: 28,139.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,537.17 : 47,661.37 = 20,390.93 : x
  2. Step 2: Convert to fraction form
    34,537.17/47,661.37 = 20,390.93/x
  3. Step 3: Cross multiply
    34,537.17x = 47,661.37 × 20,390.93
  4. Step 4: Simplify right side
    34,537.17x = 971,859,370.09
  5. Step 5: Solve for x
    x = 971,859,370.09/34,537.17
  6. Step 6: Final answer
    x = 28,139.52

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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.