Home / 20,472.51-30,710.96-5,681.49

Finding the Fourth Proportional to 20,472.51, 30,710.96 and 5,681.49

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Solution

The fourth proportional to 20,472.51, 30,710.96 and 5,681.49 is: 8,522.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,472.51 : 30,710.96 = 5,681.49 : x
  2. Step 2: Convert to fraction form
    20,472.51/30,710.96 = 5,681.49/x
  3. Step 3: Cross multiply
    20,472.51x = 30,710.96 × 5,681.49
  4. Step 4: Simplify right side
    20,472.51x = 174,484,012.13
  5. Step 5: Solve for x
    x = 174,484,012.13/20,472.51
  6. Step 6: Final answer
    x = 8,522.84

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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.