Home / 30,587.16-42,206.49-17,156.55

Finding the Fourth Proportional to 30,587.16, 42,206.49 and 17,156.55

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Solution

The fourth proportional to 30,587.16, 42,206.49 and 17,156.55 is: 23,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,587.16 : 42,206.49 = 17,156.55 : x
  2. Step 2: Convert to fraction form
    30,587.16/42,206.49 = 17,156.55/x
  3. Step 3: Cross multiply
    30,587.16x = 42,206.49 × 17,156.55
  4. Step 4: Simplify right side
    30,587.16x = 724,117,756.01
  5. Step 5: Solve for x
    x = 724,117,756.01/30,587.16
  6. Step 6: Final answer
    x = 23,673.91

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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.