Home / 38,345.32-52,916.12-21,349.30

Finding the Fourth Proportional to 38,345.32, 52,916.12 and 21,349.30

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Solution

The fourth proportional to 38,345.32, 52,916.12 and 21,349.30 is: 29,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,345.32 : 52,916.12 = 21,349.30 : x
  2. Step 2: Convert to fraction form
    38,345.32/52,916.12 = 21,349.30/x
  3. Step 3: Cross multiply
    38,345.32x = 52,916.12 × 21,349.30
  4. Step 4: Simplify right side
    38,345.32x = 1,129,722,120.72
  5. Step 5: Solve for x
    x = 1,129,722,120.72/38,345.32
  6. Step 6: Final answer
    x = 29,461.80

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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.