Home / 38,142.47-52,637.86-21,148.30

Finding the Fourth Proportional to 38,142.47, 52,637.86 and 21,148.30

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Solution

The fourth proportional to 38,142.47, 52,637.86 and 21,148.30 is: 29,185.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,142.47 : 52,637.86 = 21,148.30 : x
  2. Step 2: Convert to fraction form
    38,142.47/52,637.86 = 21,148.30/x
  3. Step 3: Cross multiply
    38,142.47x = 52,637.86 × 21,148.30
  4. Step 4: Simplify right side
    38,142.47x = 1,113,200,885.71
  5. Step 5: Solve for x
    x = 1,113,200,885.71/38,142.47
  6. Step 6: Final answer
    x = 29,185.34

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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.