Home / 30,683.12-42,342.43-17,254.08

Finding the Fourth Proportional to 30,683.12, 42,342.43 and 17,254.08

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Solution

The fourth proportional to 30,683.12, 42,342.43 and 17,254.08 is: 23,810.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,683.12 : 42,342.43 = 17,254.08 : x
  2. Step 2: Convert to fraction form
    30,683.12/42,342.43 = 17,254.08/x
  3. Step 3: Cross multiply
    30,683.12x = 42,342.43 × 17,254.08
  4. Step 4: Simplify right side
    30,683.12x = 730,579,780.47
  5. Step 5: Solve for x
    x = 730,579,780.47/30,683.12
  6. Step 6: Final answer
    x = 23,810.48

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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.