Home / 42,960.68-64,428.62-14,879.60

Finding the Fourth Proportional to 42,960.68, 64,428.62 and 14,879.60

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Solution

The fourth proportional to 42,960.68, 64,428.62 and 14,879.60 is: 22,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,960.68 : 64,428.62 = 14,879.60 : x
  2. Step 2: Convert to fraction form
    42,960.68/64,428.62 = 14,879.60/x
  3. Step 3: Cross multiply
    42,960.68x = 64,428.62 × 14,879.60
  4. Step 4: Simplify right side
    42,960.68x = 958,671,939.22
  5. Step 5: Solve for x
    x = 958,671,939.22/42,960.68
  6. Step 6: Final answer
    x = 22,315.10

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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.