Home / 21,203.04-29,260.64-11,643.30

Finding the Fourth Proportional to 21,203.04, 29,260.64 and 11,643.30

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Solution

The fourth proportional to 21,203.04, 29,260.64 and 11,643.30 is: 16,068.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.04 : 29,260.64 = 11,643.30 : x
  2. Step 2: Convert to fraction form
    21,203.04/29,260.64 = 11,643.30/x
  3. Step 3: Cross multiply
    21,203.04x = 29,260.64 × 11,643.30
  4. Step 4: Simplify right side
    21,203.04x = 340,690,409.71
  5. Step 5: Solve for x
    x = 340,690,409.71/21,203.04
  6. Step 6: Final answer
    x = 16,068.00

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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.