Home / 35,398.72-48,854.40-21,251.20

Finding the Fourth Proportional to 35,398.72, 48,854.40 and 21,251.20

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Solution

The fourth proportional to 35,398.72, 48,854.40 and 21,251.20 is: 29,329.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,398.72 : 48,854.40 = 21,251.20 : x
  2. Step 2: Convert to fraction form
    35,398.72/48,854.40 = 21,251.20/x
  3. Step 3: Cross multiply
    35,398.72x = 48,854.40 × 21,251.20
  4. Step 4: Simplify right side
    35,398.72x = 1,038,214,625.28
  5. Step 5: Solve for x
    x = 1,038,214,625.28/35,398.72
  6. Step 6: Final answer
    x = 29,329.16

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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.