Home / 34,746.70-47,950.55-20,403.76

Finding the Fourth Proportional to 34,746.70, 47,950.55 and 20,403.76

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Solution

The fourth proportional to 34,746.70, 47,950.55 and 20,403.76 is: 28,157.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,746.70 : 47,950.55 = 20,403.76 : x
  2. Step 2: Convert to fraction form
    34,746.70/47,950.55 = 20,403.76/x
  3. Step 3: Cross multiply
    34,746.70x = 47,950.55 × 20,403.76
  4. Step 4: Simplify right side
    34,746.70x = 978,371,514.07
  5. Step 5: Solve for x
    x = 978,371,514.07/34,746.70
  6. Step 6: Final answer
    x = 28,157.25

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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.