Home / 39,005.15-53,882.21-31,037.18

Finding the Fourth Proportional to 39,005.15, 53,882.21 and 31,037.18

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Solution

The fourth proportional to 39,005.15, 53,882.21 and 31,037.18 is: 42,875.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,005.15 : 53,882.21 = 31,037.18 : x
  2. Step 2: Convert to fraction form
    39,005.15/53,882.21 = 31,037.18/x
  3. Step 3: Cross multiply
    39,005.15x = 53,882.21 × 31,037.18
  4. Step 4: Simplify right side
    39,005.15x = 1,672,351,658.75
  5. Step 5: Solve for x
    x = 1,672,351,658.75/39,005.15
  6. Step 6: Final answer
    x = 42,875.16

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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.