Home / 19,478.88-29,184.84-15,345.36

Finding the Fourth Proportional to 19,478.88, 29,184.84 and 15,345.36

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Solution

The fourth proportional to 19,478.88, 29,184.84 and 15,345.36 is: 22,991.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.88 : 29,184.84 = 15,345.36 : x
  2. Step 2: Convert to fraction form
    19,478.88/29,184.84 = 15,345.36/x
  3. Step 3: Cross multiply
    19,478.88x = 29,184.84 × 15,345.36
  4. Step 4: Simplify right side
    19,478.88x = 447,851,876.34
  5. Step 5: Solve for x
    x = 447,851,876.34/19,478.88
  6. Step 6: Final answer
    x = 22,991.66

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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.