Home / 22,985.99-31,724.36-21,485.16

Finding the Fourth Proportional to 22,985.99, 31,724.36 and 21,485.16

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Solution

The fourth proportional to 22,985.99, 31,724.36 and 21,485.16 is: 29,652.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,985.99 : 31,724.36 = 21,485.16 : x
  2. Step 2: Convert to fraction form
    22,985.99/31,724.36 = 21,485.16/x
  3. Step 3: Cross multiply
    22,985.99x = 31,724.36 × 21,485.16
  4. Step 4: Simplify right side
    22,985.99x = 681,602,843.07
  5. Step 5: Solve for x
    x = 681,602,843.07/22,985.99
  6. Step 6: Final answer
    x = 29,652.98

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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.