Home / 30,683.02-42,341.83-20,072.43

Finding the Fourth Proportional to 30,683.02, 42,341.83 and 20,072.43

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Solution

The fourth proportional to 30,683.02, 42,341.83 and 20,072.43 is: 27,699.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,683.02 : 42,341.83 = 20,072.43 : x
  2. Step 2: Convert to fraction form
    30,683.02/42,341.83 = 20,072.43/x
  3. Step 3: Cross multiply
    30,683.02x = 42,341.83 × 20,072.43
  4. Step 4: Simplify right side
    30,683.02x = 849,903,207.04
  5. Step 5: Solve for x
    x = 849,903,207.04/30,683.02
  6. Step 6: Final answer
    x = 27,699.46

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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.