Home / 26,900.60-37,127.36-15,570.40

Finding the Fourth Proportional to 26,900.60, 37,127.36 and 15,570.40

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Solution

The fourth proportional to 26,900.60, 37,127.36 and 15,570.40 is: 21,489.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,900.60 : 37,127.36 = 15,570.40 : x
  2. Step 2: Convert to fraction form
    26,900.60/37,127.36 = 15,570.40/x
  3. Step 3: Cross multiply
    26,900.60x = 37,127.36 × 15,570.40
  4. Step 4: Simplify right side
    26,900.60x = 578,087,846.14
  5. Step 5: Solve for x
    x = 578,087,846.14/26,900.60
  6. Step 6: Final answer
    x = 21,489.78

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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.