Home / 19,715.86-29,557.80-13,460.11

Finding the Fourth Proportional to 19,715.86, 29,557.80 and 13,460.11

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Solution

The fourth proportional to 19,715.86, 29,557.80 and 13,460.11 is: 20,179.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.86 : 29,557.80 = 13,460.11 : x
  2. Step 2: Convert to fraction form
    19,715.86/29,557.80 = 13,460.11/x
  3. Step 3: Cross multiply
    19,715.86x = 29,557.80 × 13,460.11
  4. Step 4: Simplify right side
    19,715.86x = 397,851,239.36
  5. Step 5: Solve for x
    x = 397,851,239.36/19,715.86
  6. Step 6: Final answer
    x = 20,179.25

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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.