Home / 30,499.38-42,088.95-17,070.57

Finding the Fourth Proportional to 30,499.38, 42,088.95 and 17,070.57

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Solution

The fourth proportional to 30,499.38, 42,088.95 and 17,070.57 is: 23,557.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,499.38 : 42,088.95 = 17,070.57 : x
  2. Step 2: Convert to fraction form
    30,499.38/42,088.95 = 17,070.57/x
  3. Step 3: Cross multiply
    30,499.38x = 42,088.95 × 17,070.57
  4. Step 4: Simplify right side
    30,499.38x = 718,482,367.20
  5. Step 5: Solve for x
    x = 718,482,367.20/30,499.38
  6. Step 6: Final answer
    x = 23,557.28

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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.