Home / 38,655.30-53,343.54-21,659.34

Finding the Fourth Proportional to 38,655.30, 53,343.54 and 21,659.34

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Solution

The fourth proportional to 38,655.30, 53,343.54 and 21,659.34 is: 29,889.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,655.30 : 53,343.54 = 21,659.34 : x
  2. Step 2: Convert to fraction form
    38,655.30/53,343.54 = 21,659.34/x
  3. Step 3: Cross multiply
    38,655.30x = 53,343.54 × 21,659.34
  4. Step 4: Simplify right side
    38,655.30x = 1,155,385,869.66
  5. Step 5: Solve for x
    x = 1,155,385,869.66/38,655.30
  6. Step 6: Final answer
    x = 29,889.46

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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.