Home / 30,385.98-45,584.32-10,390.77

Finding the Fourth Proportional to 30,385.98, 45,584.32 and 10,390.77

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Solution

The fourth proportional to 30,385.98, 45,584.32 and 10,390.77 is: 15,587.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,385.98 : 45,584.32 = 10,390.77 : x
  2. Step 2: Convert to fraction form
    30,385.98/45,584.32 = 10,390.77/x
  3. Step 3: Cross multiply
    30,385.98x = 45,584.32 × 10,390.77
  4. Step 4: Simplify right side
    30,385.98x = 473,656,269.18
  5. Step 5: Solve for x
    x = 473,656,269.18/30,385.98
  6. Step 6: Final answer
    x = 15,587.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.