Home / 19,987.02-29,980.53-15,608.16

Finding the Fourth Proportional to 19,987.02, 29,980.53 and 15,608.16

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Solution

The fourth proportional to 19,987.02, 29,980.53 and 15,608.16 is: 23,412.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.02 : 29,980.53 = 15,608.16 : x
  2. Step 2: Convert to fraction form
    19,987.02/29,980.53 = 15,608.16/x
  3. Step 3: Cross multiply
    19,987.02x = 29,980.53 × 15,608.16
  4. Step 4: Simplify right side
    19,987.02x = 467,940,909.12
  5. Step 5: Solve for x
    x = 467,940,909.12/19,987.02
  6. Step 6: Final answer
    x = 23,412.24

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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.