Home / 25,543.31-35,254.63-15,987.65

Finding the Fourth Proportional to 25,543.31, 35,254.63 and 15,987.65

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Solution

The fourth proportional to 25,543.31, 35,254.63 and 15,987.65 is: 22,066.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,543.31 : 35,254.63 = 15,987.65 : x
  2. Step 2: Convert to fraction form
    25,543.31/35,254.63 = 15,987.65/x
  3. Step 3: Cross multiply
    25,543.31x = 35,254.63 × 15,987.65
  4. Step 4: Simplify right side
    25,543.31x = 563,638,469.08
  5. Step 5: Solve for x
    x = 563,638,469.08/25,543.31
  6. Step 6: Final answer
    x = 22,066.00

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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.