Home / 39,018.40-58,527.60-10,938.40

Finding the Fourth Proportional to 39,018.40, 58,527.60 and 10,938.40

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Solution

The fourth proportional to 39,018.40, 58,527.60 and 10,938.40 is: 16,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,018.40 : 58,527.60 = 10,938.40 : x
  2. Step 2: Convert to fraction form
    39,018.40/58,527.60 = 10,938.40/x
  3. Step 3: Cross multiply
    39,018.40x = 58,527.60 × 10,938.40
  4. Step 4: Simplify right side
    39,018.40x = 640,198,299.84
  5. Step 5: Solve for x
    x = 640,198,299.84/39,018.40
  6. Step 6: Final answer
    x = 16,407.60

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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.