Home / 30,549.15-42,157.13-17,801.52

Finding the Fourth Proportional to 30,549.15, 42,157.13 and 17,801.52

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Solution

The fourth proportional to 30,549.15, 42,157.13 and 17,801.52 is: 24,565.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,549.15 : 42,157.13 = 17,801.52 : x
  2. Step 2: Convert to fraction form
    30,549.15/42,157.13 = 17,801.52/x
  3. Step 3: Cross multiply
    30,549.15x = 42,157.13 × 17,801.52
  4. Step 4: Simplify right side
    30,549.15x = 750,460,903.83
  5. Step 5: Solve for x
    x = 750,460,903.83/30,549.15
  6. Step 6: Final answer
    x = 24,565.69

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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.