Home / 30,570.56-42,187.52-19,953.92

Finding the Fourth Proportional to 30,570.56, 42,187.52 and 19,953.92

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Solution

The fourth proportional to 30,570.56, 42,187.52 and 19,953.92 is: 27,536.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,570.56 : 42,187.52 = 19,953.92 : x
  2. Step 2: Convert to fraction form
    30,570.56/42,187.52 = 19,953.92/x
  3. Step 3: Cross multiply
    30,570.56x = 42,187.52 × 19,953.92
  4. Step 4: Simplify right side
    30,570.56x = 841,806,399.08
  5. Step 5: Solve for x
    x = 841,806,399.08/30,570.56
  6. Step 6: Final answer
    x = 27,536.51

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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.