Home / 40,779.81-56,278.71-22,875.93

Finding the Fourth Proportional to 40,779.81, 56,278.71 and 22,875.93

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Solution

The fourth proportional to 40,779.81, 56,278.71 and 22,875.93 is: 31,570.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,779.81 : 56,278.71 = 22,875.93 : x
  2. Step 2: Convert to fraction form
    40,779.81/56,278.71 = 22,875.93/x
  3. Step 3: Cross multiply
    40,779.81x = 56,278.71 × 22,875.93
  4. Step 4: Simplify right side
    40,779.81x = 1,287,427,830.45
  5. Step 5: Solve for x
    x = 1,287,427,830.45/40,779.81
  6. Step 6: Final answer
    x = 31,570.23

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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.