Home / 38,005.60-57,008.40-31,007.20

Finding the Fourth Proportional to 38,005.60, 57,008.40 and 31,007.20

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Solution

The fourth proportional to 38,005.60, 57,008.40 and 31,007.20 is: 46,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,005.60 : 57,008.40 = 31,007.20 : x
  2. Step 2: Convert to fraction form
    38,005.60/57,008.40 = 31,007.20/x
  3. Step 3: Cross multiply
    38,005.60x = 57,008.40 × 31,007.20
  4. Step 4: Simplify right side
    38,005.60x = 1,767,670,860.48
  5. Step 5: Solve for x
    x = 1,767,670,860.48/38,005.60
  6. Step 6: Final answer
    x = 46,510.80

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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.