Home / 28,602.28-42,813.66-19,665.46

Finding the Fourth Proportional to 28,602.28, 42,813.66 and 19,665.46

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Solution

The fourth proportional to 28,602.28, 42,813.66 and 19,665.46 is: 29,436.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,602.28 : 42,813.66 = 19,665.46 : x
  2. Step 2: Convert to fraction form
    28,602.28/42,813.66 = 19,665.46/x
  3. Step 3: Cross multiply
    28,602.28x = 42,813.66 × 19,665.46
  4. Step 4: Simplify right side
    28,602.28x = 841,950,318.18
  5. Step 5: Solve for x
    x = 841,950,318.18/28,602.28
  6. Step 6: Final answer
    x = 29,436.48

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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.