Home / 25,125.60-37,688.40-18,929.10

Finding the Fourth Proportional to 25,125.60, 37,688.40 and 18,929.10

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Solution

The fourth proportional to 25,125.60, 37,688.40 and 18,929.10 is: 28,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,125.60 : 37,688.40 = 18,929.10 : x
  2. Step 2: Convert to fraction form
    25,125.60/37,688.40 = 18,929.10/x
  3. Step 3: Cross multiply
    25,125.60x = 37,688.40 × 18,929.10
  4. Step 4: Simplify right side
    25,125.60x = 713,407,492.44
  5. Step 5: Solve for x
    x = 713,407,492.44/25,125.60
  6. Step 6: Final answer
    x = 28,393.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.