Home / 39,135.15-58,688.78-14,168.75

Finding the Fourth Proportional to 39,135.15, 58,688.78 and 14,168.75

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Solution

The fourth proportional to 39,135.15, 58,688.78 and 14,168.75 is: 21,248.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,135.15 : 58,688.78 = 14,168.75 : x
  2. Step 2: Convert to fraction form
    39,135.15/58,688.78 = 14,168.75/x
  3. Step 3: Cross multiply
    39,135.15x = 58,688.78 × 14,168.75
  4. Step 4: Simplify right side
    39,135.15x = 831,546,287.34
  5. Step 5: Solve for x
    x = 831,546,287.34/39,135.15
  6. Step 6: Final answer
    x = 21,248.07

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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.