Home / 42,765.41-64,129.77-14,688.29

Finding the Fourth Proportional to 42,765.41, 64,129.77 and 14,688.29

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Solution

The fourth proportional to 42,765.41, 64,129.77 and 14,688.29 is: 22,026.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,765.41 : 64,129.77 = 14,688.29 : x
  2. Step 2: Convert to fraction form
    42,765.41/64,129.77 = 14,688.29/x
  3. Step 3: Cross multiply
    42,765.41x = 64,129.77 × 14,688.29
  4. Step 4: Simplify right side
    42,765.41x = 941,956,819.72
  5. Step 5: Solve for x
    x = 941,956,819.72/42,765.41
  6. Step 6: Final answer
    x = 22,026.14

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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.