Home / 35,864.70-49,473.06-21,520.72

Finding the Fourth Proportional to 35,864.70, 49,473.06 and 21,520.72

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Solution

The fourth proportional to 35,864.70, 49,473.06 and 21,520.72 is: 29,686.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,864.70 : 49,473.06 = 21,520.72 : x
  2. Step 2: Convert to fraction form
    35,864.70/49,473.06 = 21,520.72/x
  3. Step 3: Cross multiply
    35,864.70x = 49,473.06 × 21,520.72
  4. Step 4: Simplify right side
    35,864.70x = 1,064,695,871.80
  5. Step 5: Solve for x
    x = 1,064,695,871.80/35,864.70
  6. Step 6: Final answer
    x = 29,686.46

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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.