Home / 15,919.02-23,875.44-15,128.76

Finding the Fourth Proportional to 15,919.02, 23,875.44 and 15,128.76

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Solution

The fourth proportional to 15,919.02, 23,875.44 and 15,128.76 is: 22,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919.02 : 23,875.44 = 15,128.76 : x
  2. Step 2: Convert to fraction form
    15,919.02/23,875.44 = 15,128.76/x
  3. Step 3: Cross multiply
    15,919.02x = 23,875.44 × 15,128.76
  4. Step 4: Simplify right side
    15,919.02x = 361,205,801.65
  5. Step 5: Solve for x
    x = 361,205,801.65/15,919.02
  6. Step 6: Final answer
    x = 22,690.20

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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.