Home / 38,385.39-52,973.47-21,389.65

Finding the Fourth Proportional to 38,385.39, 52,973.47 and 21,389.65

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Solution

The fourth proportional to 38,385.39, 52,973.47 and 21,389.65 is: 29,518.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,385.39 : 52,973.47 = 21,389.65 : x
  2. Step 2: Convert to fraction form
    38,385.39/52,973.47 = 21,389.65/x
  3. Step 3: Cross multiply
    38,385.39x = 52,973.47 × 21,389.65
  4. Step 4: Simplify right side
    38,385.39x = 1,133,084,174.86
  5. Step 5: Solve for x
    x = 1,133,084,174.86/38,385.39
  6. Step 6: Final answer
    x = 29,518.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.