Home / 35,126.36-48,483.06-20,987.60

Finding the Fourth Proportional to 35,126.36, 48,483.06 and 20,987.60

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Solution

The fourth proportional to 35,126.36, 48,483.06 and 20,987.60 is: 28,968.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,126.36 : 48,483.06 = 20,987.60 : x
  2. Step 2: Convert to fraction form
    35,126.36/48,483.06 = 20,987.60/x
  3. Step 3: Cross multiply
    35,126.36x = 48,483.06 × 20,987.60
  4. Step 4: Simplify right side
    35,126.36x = 1,017,543,070.06
  5. Step 5: Solve for x
    x = 1,017,543,070.06/35,126.36
  6. Step 6: Final answer
    x = 28,968.08

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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.