Home / 55,619.14-83,428-13,499.57

Finding the Fourth Proportional to 55,619.14, 83,428 and 13,499.57

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Solution

The fourth proportional to 55,619.14, 83,428 and 13,499.57 is: 20,249.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,619.14 : 83,428 = 13,499.57 : x
  2. Step 2: Convert to fraction form
    55,619.14/83,428 = 13,499.57/x
  3. Step 3: Cross multiply
    55,619.14x = 83,428 × 13,499.57
  4. Step 4: Simplify right side
    55,619.14x = 1,126,242,125.96
  5. Step 5: Solve for x
    x = 1,126,242,125.96/55,619.14
  6. Step 6: Final answer
    x = 20,249.18

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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.