Home / 34,566.40-47,693.52-20,421.36

Finding the Fourth Proportional to 34,566.40, 47,693.52 and 20,421.36

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Solution

The fourth proportional to 34,566.40, 47,693.52 and 20,421.36 is: 28,176.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,566.40 : 47,693.52 = 20,421.36 : x
  2. Step 2: Convert to fraction form
    34,566.40/47,693.52 = 20,421.36/x
  3. Step 3: Cross multiply
    34,566.40x = 47,693.52 × 20,421.36
  4. Step 4: Simplify right side
    34,566.40x = 973,966,541.59
  5. Step 5: Solve for x
    x = 973,966,541.59/34,566.40
  6. Step 6: Final answer
    x = 28,176.68

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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.