Home / 35,787.77-53,641.16-18,220.49

Finding the Fourth Proportional to 35,787.77, 53,641.16 and 18,220.49

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Solution

The fourth proportional to 35,787.77, 53,641.16 and 18,220.49 is: 27,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,787.77 : 53,641.16 = 18,220.49 : x
  2. Step 2: Convert to fraction form
    35,787.77/53,641.16 = 18,220.49/x
  3. Step 3: Cross multiply
    35,787.77x = 53,641.16 × 18,220.49
  4. Step 4: Simplify right side
    35,787.77x = 977,368,128.27
  5. Step 5: Solve for x
    x = 977,368,128.27/35,787.77
  6. Step 6: Final answer
    x = 27,310.12

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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.