Home / 42,415.40-63,623.25-14,335.68

Finding the Fourth Proportional to 42,415.40, 63,623.25 and 14,335.68

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Solution

The fourth proportional to 42,415.40, 63,623.25 and 14,335.68 is: 21,503.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,415.40 : 63,623.25 = 14,335.68 : x
  2. Step 2: Convert to fraction form
    42,415.40/63,623.25 = 14,335.68/x
  3. Step 3: Cross multiply
    42,415.40x = 63,623.25 × 14,335.68
  4. Step 4: Simplify right side
    42,415.40x = 912,082,552.56
  5. Step 5: Solve for x
    x = 912,082,552.56/42,415.40
  6. Step 6: Final answer
    x = 21,503.57

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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.