Home / 38,385.02-52,969.58-21,391.12

Finding the Fourth Proportional to 38,385.02, 52,969.58 and 21,391.12

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Solution

The fourth proportional to 38,385.02, 52,969.58 and 21,391.12 is: 29,518.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,385.02 : 52,969.58 = 21,391.12 : x
  2. Step 2: Convert to fraction form
    38,385.02/52,969.58 = 21,391.12/x
  3. Step 3: Cross multiply
    38,385.02x = 52,969.58 × 21,391.12
  4. Step 4: Simplify right side
    38,385.02x = 1,133,078,377.28
  5. Step 5: Solve for x
    x = 1,133,078,377.28/38,385.02
  6. Step 6: Final answer
    x = 29,518.77

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Double scale
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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.