Home / 48,007.02-72,009.09-12,948.78

Finding the Fourth Proportional to 48,007.02, 72,009.09 and 12,948.78

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Solution

The fourth proportional to 48,007.02, 72,009.09 and 12,948.78 is: 19,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,007.02 : 72,009.09 = 12,948.78 : x
  2. Step 2: Convert to fraction form
    48,007.02/72,009.09 = 12,948.78/x
  3. Step 3: Cross multiply
    48,007.02x = 72,009.09 × 12,948.78
  4. Step 4: Simplify right side
    48,007.02x = 932,429,864.41
  5. Step 5: Solve for x
    x = 932,429,864.41/48,007.02
  6. Step 6: Final answer
    x = 19,422.78

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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.