Home / 20,058.13-30,070.26-12,646.25

Finding the Fourth Proportional to 20,058.13, 30,070.26 and 12,646.25

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Solution

The fourth proportional to 20,058.13, 30,070.26 and 12,646.25 is: 18,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,058.13 : 30,070.26 = 12,646.25 : x
  2. Step 2: Convert to fraction form
    20,058.13/30,070.26 = 12,646.25/x
  3. Step 3: Cross multiply
    20,058.13x = 30,070.26 × 12,646.25
  4. Step 4: Simplify right side
    20,058.13x = 380,276,108.08
  5. Step 5: Solve for x
    x = 380,276,108.08/20,058.13
  6. Step 6: Final answer
    x = 18,958.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.