Home / 19,312.68-28,925.18-12,292.68

Finding the Fourth Proportional to 19,312.68, 28,925.18 and 12,292.68

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Solution

The fourth proportional to 19,312.68, 28,925.18 and 12,292.68 is: 18,411.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.68 : 28,925.18 = 12,292.68 : x
  2. Step 2: Convert to fraction form
    19,312.68/28,925.18 = 12,292.68/x
  3. Step 3: Cross multiply
    19,312.68x = 28,925.18 × 12,292.68
  4. Step 4: Simplify right side
    19,312.68x = 355,567,981.68
  5. Step 5: Solve for x
    x = 355,567,981.68/19,312.68
  6. Step 6: Final answer
    x = 18,411.12

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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.