Home / 30,496.55-42,062.64-21,534.71

Finding the Fourth Proportional to 30,496.55, 42,062.64 and 21,534.71

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Solution

The fourth proportional to 30,496.55, 42,062.64 and 21,534.71 is: 29,701.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,496.55 : 42,062.64 = 21,534.71 : x
  2. Step 2: Convert to fraction form
    30,496.55/42,062.64 = 21,534.71/x
  3. Step 3: Cross multiply
    30,496.55x = 42,062.64 × 21,534.71
  4. Step 4: Simplify right side
    30,496.55x = 905,806,754.23
  5. Step 5: Solve for x
    x = 905,806,754.23/30,496.55
  6. Step 6: Final answer
    x = 29,701.94

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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.