Home / 34,732.16-47,934.72-20,590.40

Finding the Fourth Proportional to 34,732.16, 47,934.72 and 20,590.40

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Solution

The fourth proportional to 34,732.16, 47,934.72 and 20,590.40 is: 28,417.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,732.16 : 47,934.72 = 20,590.40 : x
  2. Step 2: Convert to fraction form
    34,732.16/47,934.72 = 20,590.40/x
  3. Step 3: Cross multiply
    34,732.16x = 47,934.72 × 20,590.40
  4. Step 4: Simplify right side
    34,732.16x = 986,995,058.69
  5. Step 5: Solve for x
    x = 986,995,058.69/34,732.16
  6. Step 6: Final answer
    x = 28,417.32

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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.