Home / 35,979.40-53,925.90-18,440.20

Finding the Fourth Proportional to 35,979.40, 53,925.90 and 18,440.20

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Solution

The fourth proportional to 35,979.40, 53,925.90 and 18,440.20 is: 27,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,979.40 : 53,925.90 = 18,440.20 : x
  2. Step 2: Convert to fraction form
    35,979.40/53,925.90 = 18,440.20/x
  3. Step 3: Cross multiply
    35,979.40x = 53,925.90 × 18,440.20
  4. Step 4: Simplify right side
    35,979.40x = 994,404,381.18
  5. Step 5: Solve for x
    x = 994,404,381.18/35,979.40
  6. Step 6: Final answer
    x = 27,638.16

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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.