Home / 42,045.40-57,992.16-28,592.74

Finding the Fourth Proportional to 42,045.40, 57,992.16 and 28,592.74

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Solution

The fourth proportional to 42,045.40, 57,992.16 and 28,592.74 is: 39,437.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,045.40 : 57,992.16 = 28,592.74 : x
  2. Step 2: Convert to fraction form
    42,045.40/57,992.16 = 28,592.74/x
  3. Step 3: Cross multiply
    42,045.40x = 57,992.16 × 28,592.74
  4. Step 4: Simplify right side
    42,045.40x = 1,658,154,752.92
  5. Step 5: Solve for x
    x = 1,658,154,752.92/42,045.40
  6. Step 6: Final answer
    x = 39,437.25

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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.