Home / 28,366.77-42,475.80-20,001.48

Finding the Fourth Proportional to 28,366.77, 42,475.80 and 20,001.48

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Solution

The fourth proportional to 28,366.77, 42,475.80 and 20,001.48 is: 29,949.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.77 : 42,475.80 = 20,001.48 : x
  2. Step 2: Convert to fraction form
    28,366.77/42,475.80 = 20,001.48/x
  3. Step 3: Cross multiply
    28,366.77x = 42,475.80 × 20,001.48
  4. Step 4: Simplify right side
    28,366.77x = 849,578,864.18
  5. Step 5: Solve for x
    x = 849,578,864.18/28,366.77
  6. Step 6: Final answer
    x = 29,949.79

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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.