Home / 36,909.81-55,281.47-17,146.78

Finding the Fourth Proportional to 36,909.81, 55,281.47 and 17,146.78

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Solution

The fourth proportional to 36,909.81, 55,281.47 and 17,146.78 is: 25,681.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,909.81 : 55,281.47 = 17,146.78 : x
  2. Step 2: Convert to fraction form
    36,909.81/55,281.47 = 17,146.78/x
  3. Step 3: Cross multiply
    36,909.81x = 55,281.47 × 17,146.78
  4. Step 4: Simplify right side
    36,909.81x = 947,899,204.17
  5. Step 5: Solve for x
    x = 947,899,204.17/36,909.81
  6. Step 6: Final answer
    x = 25,681.50

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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.