Home / 26,488.32-39,685.77-13,980.78

Finding the Fourth Proportional to 26,488.32, 39,685.77 and 13,980.78

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Solution

The fourth proportional to 26,488.32, 39,685.77 and 13,980.78 is: 20,946.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,488.32 : 39,685.77 = 13,980.78 : x
  2. Step 2: Convert to fraction form
    26,488.32/39,685.77 = 13,980.78/x
  3. Step 3: Cross multiply
    26,488.32x = 39,685.77 × 13,980.78
  4. Step 4: Simplify right side
    26,488.32x = 554,838,019.50
  5. Step 5: Solve for x
    x = 554,838,019.50/26,488.32
  6. Step 6: Final answer
    x = 20,946.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.