Home / 42,854.54-64,323.26-20,683.52

Finding the Fourth Proportional to 42,854.54, 64,323.26 and 20,683.52

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Solution

The fourth proportional to 42,854.54, 64,323.26 and 20,683.52 is: 31,045.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,854.54 : 64,323.26 = 20,683.52 : x
  2. Step 2: Convert to fraction form
    42,854.54/64,323.26 = 20,683.52/x
  3. Step 3: Cross multiply
    42,854.54x = 64,323.26 × 20,683.52
  4. Step 4: Simplify right side
    42,854.54x = 1,330,431,444.76
  5. Step 5: Solve for x
    x = 1,330,431,444.76/42,854.54
  6. Step 6: Final answer
    x = 31,045.29

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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.