Home / 39,756.74-54,864.72-21,607.46

Finding the Fourth Proportional to 39,756.74, 54,864.72 and 21,607.46

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Solution

The fourth proportional to 39,756.74, 54,864.72 and 21,607.46 is: 29,818.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,756.74 : 54,864.72 = 21,607.46 : x
  2. Step 2: Convert to fraction form
    39,756.74/54,864.72 = 21,607.46/x
  3. Step 3: Cross multiply
    39,756.74x = 54,864.72 × 21,607.46
  4. Step 4: Simplify right side
    39,756.74x = 1,185,487,174.23
  5. Step 5: Solve for x
    x = 1,185,487,174.23/39,756.74
  6. Step 6: Final answer
    x = 29,818.52

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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.