Home / 43,260.12-64,890.06-10,428.12

Finding the Fourth Proportional to 43,260.12, 64,890.06 and 10,428.12

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Solution

The fourth proportional to 43,260.12, 64,890.06 and 10,428.12 is: 15,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,260.12 : 64,890.06 = 10,428.12 : x
  2. Step 2: Convert to fraction form
    43,260.12/64,890.06 = 10,428.12/x
  3. Step 3: Cross multiply
    43,260.12x = 64,890.06 × 10,428.12
  4. Step 4: Simplify right side
    43,260.12x = 676,681,332.49
  5. Step 5: Solve for x
    x = 676,681,332.49/43,260.12
  6. Step 6: Final answer
    x = 15,642.15

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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.