Home / 42,017.89-57,979.80-25,656.87

Finding the Fourth Proportional to 42,017.89, 57,979.80 and 25,656.87

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Solution

The fourth proportional to 42,017.89, 57,979.80 and 25,656.87 is: 35,403.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,017.89 : 57,979.80 = 25,656.87 : x
  2. Step 2: Convert to fraction form
    42,017.89/57,979.80 = 25,656.87/x
  3. Step 3: Cross multiply
    42,017.89x = 57,979.80 × 25,656.87
  4. Step 4: Simplify right side
    42,017.89x = 1,487,580,191.23
  5. Step 5: Solve for x
    x = 1,487,580,191.23/42,017.89
  6. Step 6: Final answer
    x = 35,403.50

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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.