Home / 42,878.40-64,179.36-22,073.28

Finding the Fourth Proportional to 42,878.40, 64,179.36 and 22,073.28

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Solution

The fourth proportional to 42,878.40, 64,179.36 and 22,073.28 is: 33,038.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,878.40 : 64,179.36 = 22,073.28 : x
  2. Step 2: Convert to fraction form
    42,878.40/64,179.36 = 22,073.28/x
  3. Step 3: Cross multiply
    42,878.40x = 64,179.36 × 22,073.28
  4. Step 4: Simplify right side
    42,878.40x = 1,416,648,983.50
  5. Step 5: Solve for x
    x = 1,416,648,983.50/42,878.40
  6. Step 6: Final answer
    x = 33,038.76

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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.