Home / 42,842.12-64,247.31-14,754.42

Finding the Fourth Proportional to 42,842.12, 64,247.31 and 14,754.42

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Solution

The fourth proportional to 42,842.12, 64,247.31 and 14,754.42 is: 22,126.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,842.12 : 64,247.31 = 14,754.42 : x
  2. Step 2: Convert to fraction form
    42,842.12/64,247.31 = 14,754.42/x
  3. Step 3: Cross multiply
    42,842.12x = 64,247.31 × 14,754.42
  4. Step 4: Simplify right side
    42,842.12x = 947,931,795.61
  5. Step 5: Solve for x
    x = 947,931,795.61/42,842.12
  6. Step 6: Final answer
    x = 22,126.17

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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.