Home / 26,477.04-39,637.80-20,891.28

Finding the Fourth Proportional to 26,477.04, 39,637.80 and 20,891.28

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Solution

The fourth proportional to 26,477.04, 39,637.80 and 20,891.28 is: 31,275.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,477.04 : 39,637.80 = 20,891.28 : x
  2. Step 2: Convert to fraction form
    26,477.04/39,637.80 = 20,891.28/x
  3. Step 3: Cross multiply
    26,477.04x = 39,637.80 × 20,891.28
  4. Step 4: Simplify right side
    26,477.04x = 828,084,378.38
  5. Step 5: Solve for x
    x = 828,084,378.38/26,477.04
  6. Step 6: Final answer
    x = 31,275.56

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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.