Home / 15,303.31-21,179.28-14,935.16

Finding the Fourth Proportional to 15,303.31, 21,179.28 and 14,935.16

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Solution

The fourth proportional to 15,303.31, 21,179.28 and 14,935.16 is: 20,669.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,303.31 : 21,179.28 = 14,935.16 : x
  2. Step 2: Convert to fraction form
    15,303.31/21,179.28 = 14,935.16/x
  3. Step 3: Cross multiply
    15,303.31x = 21,179.28 × 14,935.16
  4. Step 4: Simplify right side
    15,303.31x = 316,315,935.48
  5. Step 5: Solve for x
    x = 316,315,935.48/15,303.31
  6. Step 6: Final answer
    x = 20,669.77

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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.