Home / 20,812.55-31,153.16-14,870.27

Finding the Fourth Proportional to 20,812.55, 31,153.16 and 14,870.27

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Solution

The fourth proportional to 20,812.55, 31,153.16 and 14,870.27 is: 22,258.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,812.55 : 31,153.16 = 14,870.27 : x
  2. Step 2: Convert to fraction form
    20,812.55/31,153.16 = 14,870.27/x
  3. Step 3: Cross multiply
    20,812.55x = 31,153.16 × 14,870.27
  4. Step 4: Simplify right side
    20,812.55x = 463,256,015.61
  5. Step 5: Solve for x
    x = 463,256,015.61/20,812.55
  6. Step 6: Final answer
    x = 22,258.50

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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.