Home / 30,816.63-42,526.77-17,387.55

Finding the Fourth Proportional to 30,816.63, 42,526.77 and 17,387.55

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Solution

The fourth proportional to 30,816.63, 42,526.77 and 17,387.55 is: 23,994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,816.63 : 42,526.77 = 17,387.55 : x
  2. Step 2: Convert to fraction form
    30,816.63/42,526.77 = 17,387.55/x
  3. Step 3: Cross multiply
    30,816.63x = 42,526.77 × 17,387.55
  4. Step 4: Simplify right side
    30,816.63x = 739,436,339.71
  5. Step 5: Solve for x
    x = 739,436,339.71/30,816.63
  6. Step 6: Final answer
    x = 23,994.72

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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.