Home / 55,938.60-83,960.64-20,434.32

Finding the Fourth Proportional to 55,938.60, 83,960.64 and 20,434.32

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Solution

The fourth proportional to 55,938.60, 83,960.64 and 20,434.32 is: 30,670.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,938.60 : 83,960.64 = 20,434.32 : x
  2. Step 2: Convert to fraction form
    55,938.60/83,960.64 = 20,434.32/x
  3. Step 3: Cross multiply
    55,938.60x = 83,960.64 × 20,434.32
  4. Step 4: Simplify right side
    55,938.60x = 1,715,678,585.16
  5. Step 5: Solve for x
    x = 1,715,678,585.16/55,938.60
  6. Step 6: Final answer
    x = 30,670.75

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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.