Home / 30,417.39-42,190.74-29,608.20

Finding the Fourth Proportional to 30,417.39, 42,190.74 and 29,608.20

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Solution

The fourth proportional to 30,417.39, 42,190.74 and 29,608.20 is: 41,068.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,417.39 : 42,190.74 = 29,608.20 : x
  2. Step 2: Convert to fraction form
    30,417.39/42,190.74 = 29,608.20/x
  3. Step 3: Cross multiply
    30,417.39x = 42,190.74 × 29,608.20
  4. Step 4: Simplify right side
    30,417.39x = 1,249,191,868.07
  5. Step 5: Solve for x
    x = 1,249,191,868.07/30,417.39
  6. Step 6: Final answer
    x = 41,068.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.