Home / 30,356.90-45,535.35-18,547.10

Finding the Fourth Proportional to 30,356.90, 45,535.35 and 18,547.10

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Solution

The fourth proportional to 30,356.90, 45,535.35 and 18,547.10 is: 27,820.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,356.90 : 45,535.35 = 18,547.10 : x
  2. Step 2: Convert to fraction form
    30,356.90/45,535.35 = 18,547.10/x
  3. Step 3: Cross multiply
    30,356.90x = 45,535.35 × 18,547.10
  4. Step 4: Simplify right side
    30,356.90x = 844,548,689.99
  5. Step 5: Solve for x
    x = 844,548,689.99/30,356.90
  6. Step 6: Final answer
    x = 27,820.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.