Home / 21,598.70-29,782.89-13,529.48

Finding the Fourth Proportional to 21,598.70, 29,782.89 and 13,529.48

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Solution

The fourth proportional to 21,598.70, 29,782.89 and 13,529.48 is: 18,656.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,598.70 : 29,782.89 = 13,529.48 : x
  2. Step 2: Convert to fraction form
    21,598.70/29,782.89 = 13,529.48/x
  3. Step 3: Cross multiply
    21,598.70x = 29,782.89 × 13,529.48
  4. Step 4: Simplify right side
    21,598.70x = 402,946,865.68
  5. Step 5: Solve for x
    x = 402,946,865.68/21,598.70
  6. Step 6: Final answer
    x = 18,656.07

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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.