Home / 30,461.49-42,038.87-18,525.33

Finding the Fourth Proportional to 30,461.49, 42,038.87 and 18,525.33

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Solution

The fourth proportional to 30,461.49, 42,038.87 and 18,525.33 is: 25,566.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,461.49 : 42,038.87 = 18,525.33 : x
  2. Step 2: Convert to fraction form
    30,461.49/42,038.87 = 18,525.33/x
  3. Step 3: Cross multiply
    30,461.49x = 42,038.87 × 18,525.33
  4. Step 4: Simplify right side
    30,461.49x = 778,783,846.95
  5. Step 5: Solve for x
    x = 778,783,846.95/30,461.49
  6. Step 6: Final answer
    x = 25,566.18

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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.