Home / 42,208.24-63,315.69-14,128.45

Finding the Fourth Proportional to 42,208.24, 63,315.69 and 14,128.45

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Solution

The fourth proportional to 42,208.24, 63,315.69 and 14,128.45 is: 21,193.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,208.24 : 63,315.69 = 14,128.45 : x
  2. Step 2: Convert to fraction form
    42,208.24/63,315.69 = 14,128.45/x
  3. Step 3: Cross multiply
    42,208.24x = 63,315.69 × 14,128.45
  4. Step 4: Simplify right side
    42,208.24x = 894,552,560.38
  5. Step 5: Solve for x
    x = 894,552,560.38/42,208.24
  6. Step 6: Final answer
    x = 21,193.79

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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.