Home / 39,700.80-54,708.12-28,338.24

Finding the Fourth Proportional to 39,700.80, 54,708.12 and 28,338.24

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Solution

The fourth proportional to 39,700.80, 54,708.12 and 28,338.24 is: 39,050.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,700.80 : 54,708.12 = 28,338.24 : x
  2. Step 2: Convert to fraction form
    39,700.80/54,708.12 = 28,338.24/x
  3. Step 3: Cross multiply
    39,700.80x = 54,708.12 × 28,338.24
  4. Step 4: Simplify right side
    39,700.80x = 1,550,331,834.51
  5. Step 5: Solve for x
    x = 1,550,331,834.51/39,700.80
  6. Step 6: Final answer
    x = 39,050.39

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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.