Home / 21,055.24-29,053.76-12,557.82

Finding the Fourth Proportional to 21,055.24, 29,053.76 and 12,557.82

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Solution

The fourth proportional to 21,055.24, 29,053.76 and 12,557.82 is: 17,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.24 : 29,053.76 = 12,557.82 : x
  2. Step 2: Convert to fraction form
    21,055.24/29,053.76 = 12,557.82/x
  3. Step 3: Cross multiply
    21,055.24x = 29,053.76 × 12,557.82
  4. Step 4: Simplify right side
    21,055.24x = 364,851,888.40
  5. Step 5: Solve for x
    x = 364,851,888.40/21,055.24
  6. Step 6: Final answer
    x = 17,328.32

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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.