Home / 26,758.86-36,931.80-15,426.36

Finding the Fourth Proportional to 26,758.86, 36,931.80 and 15,426.36

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Solution

The fourth proportional to 26,758.86, 36,931.80 and 15,426.36 is: 21,291.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,758.86 : 36,931.80 = 15,426.36 : x
  2. Step 2: Convert to fraction form
    26,758.86/36,931.80 = 15,426.36/x
  3. Step 3: Cross multiply
    26,758.86x = 36,931.80 × 15,426.36
  4. Step 4: Simplify right side
    26,758.86x = 569,723,242.25
  5. Step 5: Solve for x
    x = 569,723,242.25/26,758.86
  6. Step 6: Final answer
    x = 21,291.01

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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.