Home / 48,009.40-72,014.10-12,949.06

Finding the Fourth Proportional to 48,009.40, 72,014.10 and 12,949.06

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Solution

The fourth proportional to 48,009.40, 72,014.10 and 12,949.06 is: 19,423.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,009.40 : 72,014.10 = 12,949.06 : x
  2. Step 2: Convert to fraction form
    48,009.40/72,014.10 = 12,949.06/x
  3. Step 3: Cross multiply
    48,009.40x = 72,014.10 × 12,949.06
  4. Step 4: Simplify right side
    48,009.40x = 932,514,901.75
  5. Step 5: Solve for x
    x = 932,514,901.75/48,009.40
  6. Step 6: Final answer
    x = 19,423.59

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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.