Home / 42,891.29-64,349.96-20,700.53

Finding the Fourth Proportional to 42,891.29, 64,349.96 and 20,700.53

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Solution

The fourth proportional to 42,891.29, 64,349.96 and 20,700.53 is: 31,057.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,891.29 : 64,349.96 = 20,700.53 : x
  2. Step 2: Convert to fraction form
    42,891.29/64,349.96 = 20,700.53/x
  3. Step 3: Cross multiply
    42,891.29x = 64,349.96 × 20,700.53
  4. Step 4: Simplify right side
    42,891.29x = 1,332,077,852.23
  5. Step 5: Solve for x
    x = 1,332,077,852.23/42,891.29
  6. Step 6: Final answer
    x = 31,057.07

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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.