Home / 34,686.81-47,866.14-20,344.68

Finding the Fourth Proportional to 34,686.81, 47,866.14 and 20,344.68

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Solution

The fourth proportional to 34,686.81, 47,866.14 and 20,344.68 is: 28,074.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,686.81 : 47,866.14 = 20,344.68 : x
  2. Step 2: Convert to fraction form
    34,686.81/47,866.14 = 20,344.68/x
  3. Step 3: Cross multiply
    34,686.81x = 47,866.14 × 20,344.68
  4. Step 4: Simplify right side
    34,686.81x = 973,821,301.14
  5. Step 5: Solve for x
    x = 973,821,301.14/34,686.81
  6. Step 6: Final answer
    x = 28,074.69

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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.