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Finding the Fourth Proportional to 35,398.80, 53,131.04 and 17,880.92

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Solution

The fourth proportional to 35,398.80, 53,131.04 and 17,880.92 is: 26,837.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,398.80 : 53,131.04 = 17,880.92 : x
  2. Step 2: Convert to fraction form
    35,398.80/53,131.04 = 17,880.92/x
  3. Step 3: Cross multiply
    35,398.80x = 53,131.04 × 17,880.92
  4. Step 4: Simplify right side
    35,398.80x = 950,031,875.76
  5. Step 5: Solve for x
    x = 950,031,875.76/35,398.80
  6. Step 6: Final answer
    x = 26,837.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.