Home / 30,407.02-41,961.25-16,978.48

Finding the Fourth Proportional to 30,407.02, 41,961.25 and 16,978.48

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Solution

The fourth proportional to 30,407.02, 41,961.25 and 16,978.48 is: 23,430.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,407.02 : 41,961.25 = 16,978.48 : x
  2. Step 2: Convert to fraction form
    30,407.02/41,961.25 = 16,978.48/x
  3. Step 3: Cross multiply
    30,407.02x = 41,961.25 × 16,978.48
  4. Step 4: Simplify right side
    30,407.02x = 712,438,159.01
  5. Step 5: Solve for x
    x = 712,438,159.01/30,407.02
  6. Step 6: Final answer
    x = 23,430.06

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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.