Home / 40,030.98-60,045.12-18,981.12

Finding the Fourth Proportional to 40,030.98, 60,045.12 and 18,981.12

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Solution

The fourth proportional to 40,030.98, 60,045.12 and 18,981.12 is: 28,471.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,030.98 : 60,045.12 = 18,981.12 : x
  2. Step 2: Convert to fraction form
    40,030.98/60,045.12 = 18,981.12/x
  3. Step 3: Cross multiply
    40,030.98x = 60,045.12 × 18,981.12
  4. Step 4: Simplify right side
    40,030.98x = 1,139,723,628.13
  5. Step 5: Solve for x
    x = 1,139,723,628.13/40,030.98
  6. Step 6: Final answer
    x = 28,471.04

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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.