Home / 30,130.72-41,528.51-20,041.13

Finding the Fourth Proportional to 30,130.72, 41,528.51 and 20,041.13

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Solution

The fourth proportional to 30,130.72, 41,528.51 and 20,041.13 is: 27,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,130.72 : 41,528.51 = 20,041.13 : x
  2. Step 2: Convert to fraction form
    30,130.72/41,528.51 = 20,041.13/x
  3. Step 3: Cross multiply
    30,130.72x = 41,528.51 × 20,041.13
  4. Step 4: Simplify right side
    30,130.72x = 832,278,267.62
  5. Step 5: Solve for x
    x = 832,278,267.62/30,130.72
  6. Step 6: Final answer
    x = 27,622.25

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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.