Home / 21,203.10-31,804.65-14,982.30

Finding the Fourth Proportional to 21,203.10, 31,804.65 and 14,982.30

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Solution

The fourth proportional to 21,203.10, 31,804.65 and 14,982.30 is: 22,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.10 : 31,804.65 = 14,982.30 : x
  2. Step 2: Convert to fraction form
    21,203.10/31,804.65 = 14,982.30/x
  3. Step 3: Cross multiply
    21,203.10x = 31,804.65 × 14,982.30
  4. Step 4: Simplify right side
    21,203.10x = 476,506,807.70
  5. Step 5: Solve for x
    x = 476,506,807.70/21,203.10
  6. Step 6: Final answer
    x = 22,473.45

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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.