Home / 35,123.47-48,456.85-21,671.40

Finding the Fourth Proportional to 35,123.47, 48,456.85 and 21,671.40

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Solution

The fourth proportional to 35,123.47, 48,456.85 and 21,671.40 is: 29,898.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,123.47 : 48,456.85 = 21,671.40 : x
  2. Step 2: Convert to fraction form
    35,123.47/48,456.85 = 21,671.40/x
  3. Step 3: Cross multiply
    35,123.47x = 48,456.85 × 21,671.40
  4. Step 4: Simplify right side
    35,123.47x = 1,050,127,779.09
  5. Step 5: Solve for x
    x = 1,050,127,779.09/35,123.47
  6. Step 6: Final answer
    x = 29,898.18

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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.