Home / 28,267.16-42,401.64-14,219.51

Finding the Fourth Proportional to 28,267.16, 42,401.64 and 14,219.51

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Solution

The fourth proportional to 28,267.16, 42,401.64 and 14,219.51 is: 21,329.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,267.16 : 42,401.64 = 14,219.51 : x
  2. Step 2: Convert to fraction form
    28,267.16/42,401.64 = 14,219.51/x
  3. Step 3: Cross multiply
    28,267.16x = 42,401.64 × 14,219.51
  4. Step 4: Simplify right side
    28,267.16x = 602,930,331.99
  5. Step 5: Solve for x
    x = 602,930,331.99/28,267.16
  6. Step 6: Final answer
    x = 21,329.71

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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.