Home / 42,866.39-64,341.09-20,695.32

Finding the Fourth Proportional to 42,866.39, 64,341.09 and 20,695.32

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Solution

The fourth proportional to 42,866.39, 64,341.09 and 20,695.32 is: 31,063.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,866.39 : 64,341.09 = 20,695.32 : x
  2. Step 2: Convert to fraction form
    42,866.39/64,341.09 = 20,695.32/x
  3. Step 3: Cross multiply
    42,866.39x = 64,341.09 × 20,695.32
  4. Step 4: Simplify right side
    42,866.39x = 1,331,559,446.70
  5. Step 5: Solve for x
    x = 1,331,559,446.70/42,866.39
  6. Step 6: Final answer
    x = 31,063.02

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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.