Home / 40,390.87-55,703.12-25,284.91

Finding the Fourth Proportional to 40,390.87, 55,703.12 and 25,284.91

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Solution

The fourth proportional to 40,390.87, 55,703.12 and 25,284.91 is: 34,870.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,390.87 : 55,703.12 = 25,284.91 : x
  2. Step 2: Convert to fraction form
    40,390.87/55,703.12 = 25,284.91/x
  3. Step 3: Cross multiply
    40,390.87x = 55,703.12 × 25,284.91
  4. Step 4: Simplify right side
    40,390.87x = 1,408,448,285.79
  5. Step 5: Solve for x
    x = 1,408,448,285.79/40,390.87
  6. Step 6: Final answer
    x = 34,870.46

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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.