Home / 39,154.32-58,731-18,363.12

Finding the Fourth Proportional to 39,154.32, 58,731 and 18,363.12

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Solution

The fourth proportional to 39,154.32, 58,731 and 18,363.12 is: 27,544.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,154.32 : 58,731 = 18,363.12 : x
  2. Step 2: Convert to fraction form
    39,154.32/58,731 = 18,363.12/x
  3. Step 3: Cross multiply
    39,154.32x = 58,731 × 18,363.12
  4. Step 4: Simplify right side
    39,154.32x = 1,078,484,400.72
  5. Step 5: Solve for x
    x = 1,078,484,400.72/39,154.32
  6. Step 6: Final answer
    x = 27,544.45

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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.