Home / 29,042.02-40,071.88-18,985.20

Finding the Fourth Proportional to 29,042.02, 40,071.88 and 18,985.20

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Solution

The fourth proportional to 29,042.02, 40,071.88 and 18,985.20 is: 26,195.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,042.02 : 40,071.88 = 18,985.20 : x
  2. Step 2: Convert to fraction form
    29,042.02/40,071.88 = 18,985.20/x
  3. Step 3: Cross multiply
    29,042.02x = 40,071.88 × 18,985.20
  4. Step 4: Simplify right side
    29,042.02x = 760,772,656.18
  5. Step 5: Solve for x
    x = 760,772,656.18/29,042.02
  6. Step 6: Final answer
    x = 26,195.58

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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.