Home / 30,514.90-45,543.58-28,521.98

Finding the Fourth Proportional to 30,514.90, 45,543.58 and 28,521.98

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Solution

The fourth proportional to 30,514.90, 45,543.58 and 28,521.98 is: 42,569.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,514.90 : 45,543.58 = 28,521.98 : x
  2. Step 2: Convert to fraction form
    30,514.90/45,543.58 = 28,521.98/x
  3. Step 3: Cross multiply
    30,514.90x = 45,543.58 × 28,521.98
  4. Step 4: Simplify right side
    30,514.90x = 1,298,992,935.28
  5. Step 5: Solve for x
    x = 1,298,992,935.28/30,514.90
  6. Step 6: Final answer
    x = 42,569.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.