Home / 39,271.50-54,193.50-21,366.18

Finding the Fourth Proportional to 39,271.50, 54,193.50 and 21,366.18

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Solution

The fourth proportional to 39,271.50, 54,193.50 and 21,366.18 is: 29,484.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,271.50 : 54,193.50 = 21,366.18 : x
  2. Step 2: Convert to fraction form
    39,271.50/54,193.50 = 21,366.18/x
  3. Step 3: Cross multiply
    39,271.50x = 54,193.50 × 21,366.18
  4. Step 4: Simplify right side
    39,271.50x = 1,157,908,075.83
  5. Step 5: Solve for x
    x = 1,157,908,075.83/39,271.50
  6. Step 6: Final answer
    x = 29,484.69

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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.