Home / 70,828.02-106,253.57-20,913.17

Finding the Fourth Proportional to 70,828.02, 106,253.57 and 20,913.17

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Solution

The fourth proportional to 70,828.02, 106,253.57 and 20,913.17 is: 31,373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,828.02 : 106,253.57 = 20,913.17 : x
  2. Step 2: Convert to fraction form
    70,828.02/106,253.57 = 20,913.17/x
  3. Step 3: Cross multiply
    70,828.02x = 106,253.57 × 20,913.17
  4. Step 4: Simplify right side
    70,828.02x = 2,222,098,415.11
  5. Step 5: Solve for x
    x = 2,222,098,415.11/70,828.02
  6. Step 6: Final answer
    x = 31,373.15

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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.