Home / 38,518.17-53,157.55-21,522.47

Finding the Fourth Proportional to 38,518.17, 53,157.55 and 21,522.47

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Solution

The fourth proportional to 38,518.17, 53,157.55 and 21,522.47 is: 29,702.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,518.17 : 53,157.55 = 21,522.47 : x
  2. Step 2: Convert to fraction form
    38,518.17/53,157.55 = 21,522.47/x
  3. Step 3: Cross multiply
    38,518.17x = 53,157.55 × 21,522.47
  4. Step 4: Simplify right side
    38,518.17x = 1,144,081,495.91
  5. Step 5: Solve for x
    x = 1,144,081,495.91/38,518.17
  6. Step 6: Final answer
    x = 29,702.38

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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.