Home / 21,947.34-30,303.61-13,461.17

Finding the Fourth Proportional to 21,947.34, 30,303.61 and 13,461.17

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Solution

The fourth proportional to 21,947.34, 30,303.61 and 13,461.17 is: 18,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,947.34 : 30,303.61 = 13,461.17 : x
  2. Step 2: Convert to fraction form
    21,947.34/30,303.61 = 13,461.17/x
  3. Step 3: Cross multiply
    21,947.34x = 30,303.61 × 13,461.17
  4. Step 4: Simplify right side
    21,947.34x = 407,921,970.06
  5. Step 5: Solve for x
    x = 407,921,970.06/21,947.34
  6. Step 6: Final answer
    x = 18,586.40

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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.