Home / 55,614.08-83,428.80-18,688.64

Finding the Fourth Proportional to 55,614.08, 83,428.80 and 18,688.64

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Solution

The fourth proportional to 55,614.08, 83,428.80 and 18,688.64 is: 28,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,614.08 : 83,428.80 = 18,688.64 : x
  2. Step 2: Convert to fraction form
    55,614.08/83,428.80 = 18,688.64/x
  3. Step 3: Cross multiply
    55,614.08x = 83,428.80 × 18,688.64
  4. Step 4: Simplify right side
    55,614.08x = 1,559,170,808.83
  5. Step 5: Solve for x
    x = 1,559,170,808.83/55,614.08
  6. Step 6: Final answer
    x = 28,035.54

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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.