Home / 28,232,801.55-38,939,301.21-20,421,615.30

Finding the Fourth Proportional to 28,232,801.55, 38,939,301.21 and 20,421,615.30

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Solution

The fourth proportional to 28,232,801.55, 38,939,301.21 and 20,421,615.30 is: 28,165,941.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232,801.55 : 38,939,301.21 = 20,421,615.30 : x
  2. Step 2: Convert to fraction form
    28,232,801.55/38,939,301.21 = 20,421,615.30/x
  3. Step 3: Cross multiply
    28,232,801.55x = 38,939,301.21 × 20,421,615.30
  4. Step 4: Simplify right side
    28,232,801.55x = 795,203,429,361,444.50
  5. Step 5: Solve for x
    x = 795,203,429,361,444.50/28,232,801.55
  6. Step 6: Final answer
    x = 28,165,941.24

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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.