Home / 19,421.90-26,798.91-10,921.82

Finding the Fourth Proportional to 19,421.90, 26,798.91 and 10,921.82

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Solution

The fourth proportional to 19,421.90, 26,798.91 and 10,921.82 is: 15,070.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.90 : 26,798.91 = 10,921.82 : x
  2. Step 2: Convert to fraction form
    19,421.90/26,798.91 = 10,921.82/x
  3. Step 3: Cross multiply
    19,421.90x = 26,798.91 × 10,921.82
  4. Step 4: Simplify right side
    19,421.90x = 292,692,871.22
  5. Step 5: Solve for x
    x = 292,692,871.22/19,421.90
  6. Step 6: Final answer
    x = 15,070.25

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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.