Home / 38,159.78-52,663.73-21,169.50

Finding the Fourth Proportional to 38,159.78, 52,663.73 and 21,169.50

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Solution

The fourth proportional to 38,159.78, 52,663.73 and 21,169.50 is: 29,215.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,159.78 : 52,663.73 = 21,169.50 : x
  2. Step 2: Convert to fraction form
    38,159.78/52,663.73 = 21,169.50/x
  3. Step 3: Cross multiply
    38,159.78x = 52,663.73 × 21,169.50
  4. Step 4: Simplify right side
    38,159.78x = 1,114,864,528.90
  5. Step 5: Solve for x
    x = 1,114,864,528.90/38,159.78
  6. Step 6: Final answer
    x = 29,215.70

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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.