Home / 20,892.96-31,337.93-9,802.17

Finding the Fourth Proportional to 20,892.96, 31,337.93 and 9,802.17

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Solution

The fourth proportional to 20,892.96, 31,337.93 and 9,802.17 is: 14,702.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892.96 : 31,337.93 = 9,802.17 : x
  2. Step 2: Convert to fraction form
    20,892.96/31,337.93 = 9,802.17/x
  3. Step 3: Cross multiply
    20,892.96x = 31,337.93 × 9,802.17
  4. Step 4: Simplify right side
    20,892.96x = 307,179,741.81
  5. Step 5: Solve for x
    x = 307,179,741.81/20,892.96
  6. Step 6: Final answer
    x = 14,702.55

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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.