Home / 42,966.70-64,434.65-14,879.21

Finding the Fourth Proportional to 42,966.70, 64,434.65 and 14,879.21

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Solution

The fourth proportional to 42,966.70, 64,434.65 and 14,879.21 is: 22,313.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,966.70 : 64,434.65 = 14,879.21 : x
  2. Step 2: Convert to fraction form
    42,966.70/64,434.65 = 14,879.21/x
  3. Step 3: Cross multiply
    42,966.70x = 64,434.65 × 14,879.21
  4. Step 4: Simplify right side
    42,966.70x = 958,736,292.06
  5. Step 5: Solve for x
    x = 958,736,292.06/42,966.70
  6. Step 6: Final answer
    x = 22,313.47

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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.