Home / 21,402.36-29,543.54-19,160.35

Finding the Fourth Proportional to 21,402.36, 29,543.54 and 19,160.35

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Solution

The fourth proportional to 21,402.36, 29,543.54 and 19,160.35 is: 26,448.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,402.36 : 29,543.54 = 19,160.35 : x
  2. Step 2: Convert to fraction form
    21,402.36/29,543.54 = 19,160.35/x
  3. Step 3: Cross multiply
    21,402.36x = 29,543.54 × 19,160.35
  4. Step 4: Simplify right side
    21,402.36x = 566,064,518.23
  5. Step 5: Solve for x
    x = 566,064,518.23/21,402.36
  6. Step 6: Final answer
    x = 26,448.69

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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.