Home / 35,419.81-48,881.39-20,312.35

Finding the Fourth Proportional to 35,419.81, 48,881.39 and 20,312.35

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Solution

The fourth proportional to 35,419.81, 48,881.39 and 20,312.35 is: 28,032.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,419.81 : 48,881.39 = 20,312.35 : x
  2. Step 2: Convert to fraction form
    35,419.81/48,881.39 = 20,312.35/x
  3. Step 3: Cross multiply
    35,419.81x = 48,881.39 × 20,312.35
  4. Step 4: Simplify right side
    35,419.81x = 992,895,902.17
  5. Step 5: Solve for x
    x = 992,895,902.17/35,419.81
  6. Step 6: Final answer
    x = 28,032.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.