Home / 30,545.65-42,152.93-18,608.98

Finding the Fourth Proportional to 30,545.65, 42,152.93 and 18,608.98

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Solution

The fourth proportional to 30,545.65, 42,152.93 and 18,608.98 is: 25,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,545.65 : 42,152.93 = 18,608.98 : x
  2. Step 2: Convert to fraction form
    30,545.65/42,152.93 = 18,608.98/x
  3. Step 3: Cross multiply
    30,545.65x = 42,152.93 × 18,608.98
  4. Step 4: Simplify right side
    30,545.65x = 784,423,031.31
  5. Step 5: Solve for x
    x = 784,423,031.31/30,545.65
  6. Step 6: Final answer
    x = 25,680.35

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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.