Home / 25,618.90-35,343.89-15,543.65

Finding the Fourth Proportional to 25,618.90, 35,343.89 and 15,543.65

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Solution

The fourth proportional to 25,618.90, 35,343.89 and 15,543.65 is: 21,444.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,618.90 : 35,343.89 = 15,543.65 : x
  2. Step 2: Convert to fraction form
    25,618.90/35,343.89 = 15,543.65/x
  3. Step 3: Cross multiply
    25,618.90x = 35,343.89 × 15,543.65
  4. Step 4: Simplify right side
    25,618.90x = 549,373,055.80
  5. Step 5: Solve for x
    x = 549,373,055.80/25,618.90
  6. Step 6: Final answer
    x = 21,444.05

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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.