Home / 37,720.18-52,053.64-20,492.40

Finding the Fourth Proportional to 37,720.18, 52,053.64 and 20,492.40

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Solution

The fourth proportional to 37,720.18, 52,053.64 and 20,492.40 is: 28,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,720.18 : 52,053.64 = 20,492.40 : x
  2. Step 2: Convert to fraction form
    37,720.18/52,053.64 = 20,492.40/x
  3. Step 3: Cross multiply
    37,720.18x = 52,053.64 × 20,492.40
  4. Step 4: Simplify right side
    37,720.18x = 1,066,703,961.11
  5. Step 5: Solve for x
    x = 1,066,703,961.11/37,720.18
  6. Step 6: Final answer
    x = 28,279.40

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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.