Home / 28,041.77-41,934.75-20,931.05

Finding the Fourth Proportional to 28,041.77, 41,934.75 and 20,931.05

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Solution

The fourth proportional to 28,041.77, 41,934.75 and 20,931.05 is: 31,301.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,041.77 : 41,934.75 = 20,931.05 : x
  2. Step 2: Convert to fraction form
    28,041.77/41,934.75 = 20,931.05/x
  3. Step 3: Cross multiply
    28,041.77x = 41,934.75 × 20,931.05
  4. Step 4: Simplify right side
    28,041.77x = 877,738,139.31
  5. Step 5: Solve for x
    x = 877,738,139.31/28,041.77
  6. Step 6: Final answer
    x = 31,301.10

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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.