Home / 38,700.64-53,403.48-21,473.44

Finding the Fourth Proportional to 38,700.64, 53,403.48 and 21,473.44

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Solution

The fourth proportional to 38,700.64, 53,403.48 and 21,473.44 is: 29,631.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,700.64 : 53,403.48 = 21,473.44 : x
  2. Step 2: Convert to fraction form
    38,700.64/53,403.48 = 21,473.44/x
  3. Step 3: Cross multiply
    38,700.64x = 53,403.48 × 21,473.44
  4. Step 4: Simplify right side
    38,700.64x = 1,146,756,423.57
  5. Step 5: Solve for x
    x = 1,146,756,423.57/38,700.64
  6. Step 6: Final answer
    x = 29,631.46

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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.