Home / 28,301.40-39,058.10-16,971.32

Finding the Fourth Proportional to 28,301.40, 39,058.10 and 16,971.32

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Solution

The fourth proportional to 28,301.40, 39,058.10 and 16,971.32 is: 23,421.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.40 : 39,058.10 = 16,971.32 : x
  2. Step 2: Convert to fraction form
    28,301.40/39,058.10 = 16,971.32/x
  3. Step 3: Cross multiply
    28,301.40x = 39,058.10 × 16,971.32
  4. Step 4: Simplify right side
    28,301.40x = 662,867,590.12
  5. Step 5: Solve for x
    x = 662,867,590.12/28,301.40
  6. Step 6: Final answer
    x = 23,421.72

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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.