Home / 39,442.67-54,448.47-30,691.53

Finding the Fourth Proportional to 39,442.67, 54,448.47 and 30,691.53

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Solution

The fourth proportional to 39,442.67, 54,448.47 and 30,691.53 is: 42,368.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,442.67 : 54,448.47 = 30,691.53 : x
  2. Step 2: Convert to fraction form
    39,442.67/54,448.47 = 30,691.53/x
  3. Step 3: Cross multiply
    39,442.67x = 54,448.47 × 30,691.53
  4. Step 4: Simplify right side
    39,442.67x = 1,671,106,850.46
  5. Step 5: Solve for x
    x = 1,671,106,850.46/39,442.67
  6. Step 6: Final answer
    x = 42,368.00

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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.