Home / 55,437.21-83,188.61-20,401.47

Finding the Fourth Proportional to 55,437.21, 83,188.61 and 20,401.47

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Solution

The fourth proportional to 55,437.21, 83,188.61 and 20,401.47 is: 30,614.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,437.21 : 83,188.61 = 20,401.47 : x
  2. Step 2: Convert to fraction form
    55,437.21/83,188.61 = 20,401.47/x
  3. Step 3: Cross multiply
    55,437.21x = 83,188.61 × 20,401.47
  4. Step 4: Simplify right side
    55,437.21x = 1,697,169,931.26
  5. Step 5: Solve for x
    x = 1,697,169,931.26/55,437.21
  6. Step 6: Final answer
    x = 30,614.27

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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.