Home / 50,020.90-69,031.05-28,807.00

Finding the Fourth Proportional to 50,020.90, 69,031.05 and 28,807.00

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Solution

The fourth proportional to 50,020.90, 69,031.05 and 28,807.00 is: 39,754.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,020.90 : 69,031.05 = 28,807.00 : x
  2. Step 2: Convert to fraction form
    50,020.90/69,031.05 = 28,807.00/x
  3. Step 3: Cross multiply
    50,020.90x = 69,031.05 × 28,807.00
  4. Step 4: Simplify right side
    50,020.90x = 1,988,577,112.19
  5. Step 5: Solve for x
    x = 1,988,577,112.19/50,020.90
  6. Step 6: Final answer
    x = 39,754.93

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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.