Home / 38,455.67-53,068.72-21,459.74

Finding the Fourth Proportional to 38,455.67, 53,068.72 and 21,459.74

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Solution

The fourth proportional to 38,455.67, 53,068.72 and 21,459.74 is: 29,614.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,455.67 : 53,068.72 = 21,459.74 : x
  2. Step 2: Convert to fraction form
    38,455.67/53,068.72 = 21,459.74/x
  3. Step 3: Cross multiply
    38,455.67x = 53,068.72 × 21,459.74
  4. Step 4: Simplify right side
    38,455.67x = 1,138,840,714.93
  5. Step 5: Solve for x
    x = 1,138,840,714.93/38,455.67
  6. Step 6: Final answer
    x = 29,614.38

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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.