Home / 38,678.93-57,903.51-21,095.45

Finding the Fourth Proportional to 38,678.93, 57,903.51 and 21,095.45

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Solution

The fourth proportional to 38,678.93, 57,903.51 and 21,095.45 is: 31,580.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,678.93 : 57,903.51 = 21,095.45 : x
  2. Step 2: Convert to fraction form
    38,678.93/57,903.51 = 21,095.45/x
  3. Step 3: Cross multiply
    38,678.93x = 57,903.51 × 21,095.45
  4. Step 4: Simplify right side
    38,678.93x = 1,221,500,600.03
  5. Step 5: Solve for x
    x = 1,221,500,600.03/38,678.93
  6. Step 6: Final answer
    x = 31,580.52

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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.