Home / 30,492.04-42,066.64-18,545.80

Finding the Fourth Proportional to 30,492.04, 42,066.64 and 18,545.80

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Solution

The fourth proportional to 30,492.04, 42,066.64 and 18,545.80 is: 25,585.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,492.04 : 42,066.64 = 18,545.80 : x
  2. Step 2: Convert to fraction form
    30,492.04/42,066.64 = 18,545.80/x
  3. Step 3: Cross multiply
    30,492.04x = 42,066.64 × 18,545.80
  4. Step 4: Simplify right side
    30,492.04x = 780,159,492.11
  5. Step 5: Solve for x
    x = 780,159,492.11/30,492.04
  6. Step 6: Final answer
    x = 25,585.68

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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.