Home / 15,261.18-21,064.50-14,331.84

Finding the Fourth Proportional to 15,261.18, 21,064.50 and 14,331.84

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Solution

The fourth proportional to 15,261.18, 21,064.50 and 14,331.84 is: 19,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261.18 : 21,064.50 = 14,331.84 : x
  2. Step 2: Convert to fraction form
    15,261.18/21,064.50 = 14,331.84/x
  3. Step 3: Cross multiply
    15,261.18x = 21,064.50 × 14,331.84
  4. Step 4: Simplify right side
    15,261.18x = 301,893,043.68
  5. Step 5: Solve for x
    x = 301,893,043.68/15,261.18
  6. Step 6: Final answer
    x = 19,781.76

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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.