Home / 22,947.63-31,667.23-12,875.89

Finding the Fourth Proportional to 22,947.63, 31,667.23 and 12,875.89

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Solution

The fourth proportional to 22,947.63, 31,667.23 and 12,875.89 is: 17,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,947.63 : 31,667.23 = 12,875.89 : x
  2. Step 2: Convert to fraction form
    22,947.63/31,667.23 = 12,875.89/x
  3. Step 3: Cross multiply
    22,947.63x = 31,667.23 × 12,875.89
  4. Step 4: Simplify right side
    22,947.63x = 407,743,770.08
  5. Step 5: Solve for x
    x = 407,743,770.08/22,947.63
  6. Step 6: Final answer
    x = 17,768.45

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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.