Home / 38,007.80-57,011.70-31,009.40

Finding the Fourth Proportional to 38,007.80, 57,011.70 and 31,009.40

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Solution

The fourth proportional to 38,007.80, 57,011.70 and 31,009.40 is: 46,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,007.80 : 57,011.70 = 31,009.40 : x
  2. Step 2: Convert to fraction form
    38,007.80/57,011.70 = 31,009.40/x
  3. Step 3: Cross multiply
    38,007.80x = 57,011.70 × 31,009.40
  4. Step 4: Simplify right side
    38,007.80x = 1,767,898,609.98
  5. Step 5: Solve for x
    x = 1,767,898,609.98/38,007.80
  6. Step 6: Final answer
    x = 46,514.10

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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.