Home / 34,789.02-48,009.68-20,641.96

Finding the Fourth Proportional to 34,789.02, 48,009.68 and 20,641.96

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Solution

The fourth proportional to 34,789.02, 48,009.68 and 20,641.96 is: 28,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,789.02 : 48,009.68 = 20,641.96 : x
  2. Step 2: Convert to fraction form
    34,789.02/48,009.68 = 20,641.96/x
  3. Step 3: Cross multiply
    34,789.02x = 48,009.68 × 20,641.96
  4. Step 4: Simplify right side
    34,789.02x = 991,013,894.17
  5. Step 5: Solve for x
    x = 991,013,894.17/34,789.02
  6. Step 6: Final answer
    x = 28,486.40

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1.5x scale

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.