Home / 32,689.18-45,109.74-18,541.72

Finding the Fourth Proportional to 32,689.18, 45,109.74 and 18,541.72

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Solution

The fourth proportional to 32,689.18, 45,109.74 and 18,541.72 is: 25,586.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,689.18 : 45,109.74 = 18,541.72 : x
  2. Step 2: Convert to fraction form
    32,689.18/45,109.74 = 18,541.72/x
  3. Step 3: Cross multiply
    32,689.18x = 45,109.74 × 18,541.72
  4. Step 4: Simplify right side
    32,689.18x = 836,412,168.35
  5. Step 5: Solve for x
    x = 836,412,168.35/32,689.18
  6. Step 6: Final answer
    x = 25,586.82

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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.