Home / 21,055.68-29,050.08-13,983.52

Finding the Fourth Proportional to 21,055.68, 29,050.08 and 13,983.52

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Solution

The fourth proportional to 21,055.68, 29,050.08 and 13,983.52 is: 19,292.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.68 : 29,050.08 = 13,983.52 : x
  2. Step 2: Convert to fraction form
    21,055.68/29,050.08 = 13,983.52/x
  3. Step 3: Cross multiply
    21,055.68x = 29,050.08 × 13,983.52
  4. Step 4: Simplify right side
    21,055.68x = 406,222,374.68
  5. Step 5: Solve for x
    x = 406,222,374.68/21,055.68
  6. Step 6: Final answer
    x = 19,292.77

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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.