Home / 42,421.08-58,557.42-28,268.76

Finding the Fourth Proportional to 42,421.08, 58,557.42 and 28,268.76

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Solution

The fourth proportional to 42,421.08, 58,557.42 and 28,268.76 is: 39,021.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,421.08 : 58,557.42 = 28,268.76 : x
  2. Step 2: Convert to fraction form
    42,421.08/58,557.42 = 28,268.76/x
  3. Step 3: Cross multiply
    42,421.08x = 58,557.42 × 28,268.76
  4. Step 4: Simplify right side
    42,421.08x = 1,655,345,652.20
  5. Step 5: Solve for x
    x = 1,655,345,652.20/42,421.08
  6. Step 6: Final answer
    x = 39,021.77

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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.