Home / 35,875.32-53,788.68-12,489

Finding the Fourth Proportional to 35,875.32, 53,788.68 and 12,489

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Solution

The fourth proportional to 35,875.32, 53,788.68 and 12,489 is: 18,725.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,875.32 : 53,788.68 = 12,489 : x
  2. Step 2: Convert to fraction form
    35,875.32/53,788.68 = 12,489/x
  3. Step 3: Cross multiply
    35,875.32x = 53,788.68 × 12,489
  4. Step 4: Simplify right side
    35,875.32x = 671,766,824.52
  5. Step 5: Solve for x
    x = 671,766,824.52/35,875.32
  6. Step 6: Final answer
    x = 18,725.04

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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.