Home / 42,865.76-64,301.72-14,785.40

Finding the Fourth Proportional to 42,865.76, 64,301.72 and 14,785.40

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Solution

The fourth proportional to 42,865.76, 64,301.72 and 14,785.40 is: 22,179.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,865.76 : 64,301.72 = 14,785.40 : x
  2. Step 2: Convert to fraction form
    42,865.76/64,301.72 = 14,785.40/x
  3. Step 3: Cross multiply
    42,865.76x = 64,301.72 × 14,785.40
  4. Step 4: Simplify right side
    42,865.76x = 950,726,576.96
  5. Step 5: Solve for x
    x = 950,726,576.96/42,865.76
  6. Step 6: Final answer
    x = 22,179.16

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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.