Home / 19,303.76-26,638.93-10,920.26

Finding the Fourth Proportional to 19,303.76, 26,638.93 and 10,920.26

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Solution

The fourth proportional to 19,303.76, 26,638.93 and 10,920.26 is: 15,069.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,303.76 : 26,638.93 = 10,920.26 : x
  2. Step 2: Convert to fraction form
    19,303.76/26,638.93 = 10,920.26/x
  3. Step 3: Cross multiply
    19,303.76x = 26,638.93 × 10,920.26
  4. Step 4: Simplify right side
    19,303.76x = 290,904,041.72
  5. Step 5: Solve for x
    x = 290,904,041.72/19,303.76
  6. Step 6: Final answer
    x = 15,069.81

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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.