Home / 30,876.13-42,639.33-26,373.64

Finding the Fourth Proportional to 30,876.13, 42,639.33 and 26,373.64

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Solution

The fourth proportional to 30,876.13, 42,639.33 and 26,373.64 is: 36,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,876.13 : 42,639.33 = 26,373.64 : x
  2. Step 2: Convert to fraction form
    30,876.13/42,639.33 = 26,373.64/x
  3. Step 3: Cross multiply
    30,876.13x = 42,639.33 × 26,373.64
  4. Step 4: Simplify right side
    30,876.13x = 1,124,554,339.26
  5. Step 5: Solve for x
    x = 1,124,554,339.26/30,876.13
  6. Step 6: Final answer
    x = 36,421.49

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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.