Home / 30,963.35-42,688.75-22,342.29

Finding the Fourth Proportional to 30,963.35, 42,688.75 and 22,342.29

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Solution

The fourth proportional to 30,963.35, 42,688.75 and 22,342.29 is: 30,803.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,963.35 : 42,688.75 = 22,342.29 : x
  2. Step 2: Convert to fraction form
    30,963.35/42,688.75 = 22,342.29/x
  3. Step 3: Cross multiply
    30,963.35x = 42,688.75 × 22,342.29
  4. Step 4: Simplify right side
    30,963.35x = 953,764,300.08
  5. Step 5: Solve for x
    x = 953,764,300.08/30,963.35
  6. Step 6: Final answer
    x = 30,803.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.